Grounded Theory is not a theory, but an approach to theory development – grounded in data – that has emerged from the social sciences Group of answer choices True False
Q: Ali is interested in estimating the mean amount spent per day in a shopping mall based on 16…
A: Sample size: customers.And it is known that the amount spent per day in a shopping mall is normally…
Q: Problem 3-3 (Algo) Given the following history, use a three-quarter moving average to forecast the…
A: JanFebMarAprMayJunJulAugSepOctNovDecLast year170200210240250270225215 215275280300This…
Q: You want to estimate the average weight in tons of loads carried by trucks through a particular…
A: The margin of error is 5, the population standard deviation is 13.5 and the confidence level is 90%.
Q: Random samples of size n = 70 were selected from a binomial population with p = 0.2. Use the normal…
A: sample size(n)=70p=0.2Mean()=0.2standard deviation()=
Q: 3. Let the random variable X have the moment generating function M(t) = -1 < t < 1. 1- What are the…
A: The MGF of the random variable X is :M(t)=e3t1−t2−1<x<1Objective: Find Mean and variance of…
Q: 1. Let X be a continuous random variable with density function 3 0 = 10x + 20 ²1 ²2 0 f(x)= where…
A: Let be a continuous random variable with PDF is given by,Where,
Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…
A: The objective of this question is to determine the sample size needed to estimate a population mean…
Q: Find the shortest route from Node 1 to Node 6. (The Transhipment Nodes are going in one direction…
A: The shortest route method is use to finding shortest distance between one point to another point its…
Q: Odina wants to estimate the average number of patients admitted to the ICU daily across a large…
A: The objective of this question is to identify the appropriate distribution for constructing a…
Q: The following questions are related to questions 18 to 19: Does taking large amounts of vitamins…
A: Given the two treatments, which one is vitamins and one is a dummy pill?want to comment on placebo…
Q: A communication monitoring company claims that 45% of e-mail messages are spam. After being on…
A: A communications manager claims that about 45% of emails are spam.i.e. pAfter you return 250 emails…
Q: Stem (hundred thousands) Leaf (ten thousands) 4 6,6,7,7,7,8,9,9,9 5 0,2,4,4,7,7,7,8,8,8,9,9,9,9 6…
A: Stem and leaf plot. The stems are listed in the left side of the vertical line and these numbers…
Q: A builder wants to compare the prices per 1,000 board feet of standard or better grade framing…
A: The question is about ANOVA.Given :To find :b ) Construct ANOVA tablec ) Test the hypothesis.
Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 400…
A: The objective of this question is to construct a 95% confidence interval for the proportion of adult…
Q: 32. Touch Your Nose With Your Tongue Find the sample size needed to estimate the percentage of…
A: The formula of sample size when the preliminary estimate is unknown,
Q: What is the smallest sample size that guarantees that the margin of error is less than 35 when…
A: The objective of this question is to find the smallest sample size that ensures the margin of error…
Q: normal distribution with �=52.7 and �=72. Find the probability that a single randomly selected…
A: X~N( μ , ?)μ=52.7 , ?=72Z-score =( x - μ )/?
Q: 8.6 Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250…
A: The objective of this question is to compute a confidence interval estimate for the true proportion…
Q: d. Based upon the larger sample of 440 complaints, what is the probability that the sample…
A: From the information, given that Let the random variable X follows binomial distribution with The…
Q: Test the claim that the mean of the first population is less than the mean of the second population.…
A: level of significance = sample 1:n1= 135sample 2:n2= 142
Q: Let price denote a price index for the goods sold by a restaurant, advert the amount spent on…
A: Given the modelThe estimated coefficients of the model are b₁ = 1, b2 = 0.5, and b3 = 0.1The…
Q: A population of values has a normal distribution with �=75.3 and �=44.9. Find the probability that…
A: The objective of the question is to find the probability of a single randomly selected value and a…
Q: The following joint frequency distribution table shows responses from a sample of 210 unionized…
A:
Q: What is the smallest sample size that guarantees that the margin of error is less than 13 when…
A: From the provided information,Confidence level = 92%
Q: Create a "usual range" what is the maximum and minimum range for household size
A: From the information, given the probability distribution table is,Also given that use of “7 or more”…
Q: Express the confidence interval 845.1 39.4 in interval form. Express the answer in either decimal…
A: Confidence interval= 845.1±39.4
Q: Two catalysts may be used in a batch chemical process. Twelve batches were prepared using catalyst…
A: The number of batches prepared for catalyst 1 is =12Mean of catalyst1 =86standard deviation =3The…
Q: A population of values has a mean of 38.5 and standard deviation of 80.4. Find the probability…
A:
Q: Let random variable S represent the age of the attendees at a local concert. The following histogram…
A: The random variable represents the age of the attendees at a local concert.The following histogram…
Q: An incubation period is a time between when you contract a virus and when your symptoms start. By…
A: The objective of this question is to construct a 98% confidence interval for the average incubation…
Q: 3) Consider the following time series. Year 1 71 49 58 78 Quarter 1 2 3 4 Year 2 68 41 60 81 Year 3…
A: You are asked to construct a time series plot for the given data and identify the pattern.To…
Q: A quiz consists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes…
A: A quiz consists of 20 multiple choice questions.Each with 6 possible answers.The probability of…
Q: A study used ethnographic interview techniques, not usually part of ethnography, and quantitative…
A: Given that,A study used ethnographic interview techniques, not usually part of ethnography, and…
Q: Compute P(X) using the binomial probability formula. Then determine whether the normal distribution…
A: The binomial probability formula is,In the formula, n (60) denotes the number of trials, p( 0.2)…
Q: 1. Data was collected on 54 observations on a response of interest, y, and four potential predictor…
A: Note: “Since you have posted a question with multiple sub parts, we will provide the solution only…
Q: Does her hypothesis need to be fixed in order to obtain the null and alternative hypothesis? If so,…
A: The null and alternative hypothesis will be:H0: There is no linear relationship b/w between sleep…
Q: What is the alternative hypothesis for the Durban Watson Test? Ha: The Data is not autocorrelated. O…
A: The alternative hypothesis is provided. The objective is to select the correct alternative…
Q: QUESTION 25 A college administrator collects data on a nationwide random sample of 281 students…
A: The formula for the LCL of the confidence interval for the proportion is,
Q: 3) The joint probability density function of the random variables X, Y, and Z is f(x,y,2)-², 0 },…
A: The joint probability density function of random variables X, Y, and Z is to find(a) g(y,z)=?(b)…
Q: You measure 43 dogs' weights, and find they have a mean weight of 34 ounces. Assume the population…
A: Given:n=43To construct a 95 % confidence interval for the true population mean dog weight, you would…
Q: Suppose that we reject a null hypothesis at the 0.05 level of significance. Then for which of the…
A: The objective of the question is to understand which of the given α-values would also lead to the…
Q: Consider the hypothesis test Ho: o² = 02 against H₁ :0² < 2. Suppose that the sample sizes are n₁ =…
A: Given : n1=7 , n2=13 , s21=23.0 , s22=28.9 , α=0.05The null and alternative hypothesis is,Ho :…
Q: Based on historical data, your manager believes that 37% of the company's orders come from…
A: The objective of this question is to find the probability that the sample proportion of first-time…
Q: Find the z-score that has 76.1% of the distribution's area to its right. The Z-score is (Round to…
A: The formula of the Z-score is,Where,X denotes the raw data point,µ denotes the population mean,σ…
Q: After a lot of hard work, a studio releases a new video game. The studio believes that the game will…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: P-value
A: Test statistic = 494.796degree of freedom=4 We have to find p valueFormula Used to calculate the p…
Q: Problem #2: Suppose a random variable X has expected value E[X] = 1 and variance Var(X) = 1. Compute…
A: Suppose random variable has expected value and variance is given by: and
Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…
A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…
Q: A normal distribution has a mean of 37 and a standard deviation of 5. Find the probability that a…
A: Mean Standard deviation
Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…
A: It is given that Mean = $100Standard deviation = $12
Grounded Theory is not a theory, but an approach to theory development – grounded in data – that has emerged from the social sciences
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- Social media provides an enormous amount of data about the activities and habits of people using social platforms like Face book and Twitter. The belief is that mining that data provides a treasure trove for those who seek to quantify and predict future human behavior. A marketer is planning a survey of Internet users in the United States to determine social media usage. The objective of the survey is to gain insight on these three items: key social media platforms used, frequency of social media usage, and demographics of key social media platform users. a. For each of the three items listed, indicate whether the variables are categorical or numerical. If a variable is numerical, is it dis crete or continuous? b. Develop five categorical questions for the survey. c. Develop five numerical questions for the survey.(True/False). These data show that 80% of companies worth $75K or more are tracking the online and cellphone activity of 47% percent of US adults. (True/False). These data show that in comparison to companies, the government is less likely to track online activity. (True/False). These data show that companies run by individuals ages 18 to 29 years old are the most likely to track online activity. (True/False). These data show that the government is very likely to track Black adults (60%) and Hispanic adults (56%) and less likely to track White adults (43%).From the study "Increasing Mathematics Achievement through Contextualized and Localized Materials in Distance Learning", which of the following statement/s are true about its dependent and independent variables? I. Mathematics achievement is the dependent variable II. Mathematics achievement is the independent variable III. Contextualized and Localized Materials is the dependent variable IV. Contextualized and Localized Materials is the dependent variable O a.l only O b. Ill only O c.l and IV O d. Il and II
- Pursuing an MBA is a major personal investment. Tuition and expenses associated with business school programs are costly, but the high costs come with hopes of career advancement and high salaries. A prospective MBA student would like to examine the factors that impact starting salary upon graduation and decides to develop a model that uses program per-year tuition as a predictor of starting salary. Data were collected for 37 full-time MBA programs offered at private universities. The data are stored in the accompanying table Use the least-squares method to determine the regression coefficients b0 and b1.variables and hypothesis section: The article reviews various aspects of network analysis and probabilistic inference to understand the complexities and dynamics of network analysis. It utilizes data from clinical education on diabetic foot and online social network software to analyze the relationships between network participants and the patterns related to their networking behavior. The data explored involve clinical education on diabetic foot and online and social network software for research. The variables being analyzed are the relationships between the network participants, as well as the patterns related to the networking behaviors. The hypotheses tested in the article are related to examining the effect of different forms of networks on the efficacy of clinical education, as well as the impact of online network relationships among people. The outcomes of the analysis and hypotheses in the article are used to explain the importance of different probabilistic inferences and…The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45 sales staff. Some of its sales staff are engineers and others are not. You are to analyze this data to help the company determine whether there are any differences in the sales between engineers and non-engineers. Arguably, perhaps engineers are better able to answer technical questions, but may not have the same skills as others. Additionally, the company would like to use this data to obtain an estimate of its average (annual) sales and how they compare to last year. To aid you, I have provided you with the following “guiding steps”: 1)Use a bivariate tabular method to study the relationship between “Sales” and “Engineer.” Based on this analysis, are engineers better or worse than non-engineers at Sales (higher sales are considered better)? Sales Engineer 113 No 98 No 76 No 101 No 120 No 131 No 66 No 98 No 83 No 75 No 87 No 96 Yes 90 Yes 117 Yes 118…
- Depression A study published in the Archives of GeneralPsychiatry examined the impact of depression on apatient’s ability to survive cardiac disease. Researchersidentified 450 people with cardiac disease, evaluatedthem for depression, and followed the group for 4 years.Of the 361 patients with no depression, 67 died. Of the89 patients with minor or major depression, 26 died.Among people who suffer from cardiac disease, aredepressed patients more likely to die than non-depressedones?a) What kind of design was used to collect these data?b) Write appropriate hypotheses.c) Are the assumptions and conditions necessary forinference satisfied?d) Test the hypothesis and state your conclusion.e) Explain in this context what your P-value means.f) If your conclusion is actually incorrect, which type oferror did you commit?The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45 sales staff. Some of its sales staff are engineers and others are not. You are to analyze this data to help the company determine whether there are any differences in the sales between engineers and non-engineers. Arguably, perhaps engineers are better able to answer technical questions, but may not have the same skills as others. Additionally, the company would like to use this data to obtain an estimate of its average (annual) sales and how they compare to last year. To aid you, the following “guiding steps”: Use a bivariate tabular method to study the relationship between “Sales” and “Engineer.” Based on this analysis, are engineers better or worse than non-engineers at Sales (higher sales are considered better)? Provide a statistical description of the variable “Sales” (for engineers and non-engineers combined). Use this to determine whether there is a lot of volatility in sales,…Theories of psychopathology most often include a bio-psycho-social model where the individual's own genetic make up and unique physical manifestation, their cognitive and other psychological factors and the physical and the social context of the individual contributes to difference between neurotypical and non-neurotypical populations. One commonly observed and often expressed trait of people with attentional deficit hyperactivity disorder (ADHD) is that more stimulation is needed to keep one's focus. Persons with the condition often describe needing to scribble while listening to lectures, needing to be physically active while a conversation is going, checking phone for notifications during a movie's calmer parts, etc. You, a research psychologist at a school specialized for non-neurotypical populations, hypothesize that during exams, a little bit of distraction might be better than silence. You randomly select 30 ADHD students and 30 neurotypical students and make them have their…
- Research to test if "proficiency tests" are influenced by the education of the child's parents was done in Paarl, a Semi Urban area in the Western Cape. A random sample of 6-year-old children was drawn. Each child's test score and the educational level of the parent with their highest level of education were recorded. The educational categories are: Less than High School; High School Graduate; Some University; and Un- iversity Graduate. The data are as follows: Less than High School (198; 234; 207; 181; 223; 195; 209). High School Graduate (224; 209; 221; 221; 228; 165; 168). Some University (230; 223; 227; 265; 219; 222; 228). University Graduate (248; 255; 196; 193; 180; 252; 214). The Sums of Squares are also given as follows: SST = 3005.5357; SSE = 13719.4286; and TSS = 16724.9643. State the correct hypotheses. %D %3D2 Many students over the last couple of years have been earning money as social networking service influencers. The amount of influencers and their popularity has been growing steadily. The top 50 social networking service influencers have over 3 billion followers together. Unfortunately, this development has a downside for dogs. According to a recent newspaper article, dogs deemed less playful for video sharing social networking services are being dumped at shelters. The general perception of playfulness disproportionately affects older dogs. The accompanying table gives the data for a random selection of dogs from a local shelter for a correlation of age and days. Construct a 90% confidence interval to estimate the average number of days a dog that is 4 years old will stay at the shelter. Click the icon to view the data table. (CCECOP) Determine the upper and lower limits of the 90% confidence interval. UCL= days LCL = days (Round to two decimal places as needed.)Is Data analysis methods: description of the data analysis methods is clear and appropriate? Thematic analysis was utilized in which themes from the data of the interviews, questionnaire, and phone call were identified by grouping similar answers into larger categories. Major themes emerged in the process of grouping. These themes were then organized into minor themes. Open coding, or initial coding was utilized for the data where fragments of data such as keywords, incidents, etc. were studied closely for analytic import. "Initial coding continues the interaction that you shared with your participants while collecting data but brings you into an interactive analytic space (Silipigni Connaway, L., &, Radford, M. L., 2021). The software that seemed best for the study that was used was MicroCase, a statistical analysis and data management system, as it developed with social science researchers in mind to utilize, and the area of workplace ageism as derived from social interaction…