A Deputy Registrar at a certainty university conducted a Chi-Square test of association to establish whether or not employee grade and level of absenteeism were associated. Table 2 below shows part of the results which were obtained.Table 2: Cross tabulation of employee grade and level of absenteeism Contingency Tables Grade LAbsence 123Totallow Observed 8 1 0 9 Expected 2.90 3.48 2.61 9.00 high Observed 2 11 9 22 Expected 7.10 8.52 6.39 22.00 Total Observed 10 12 9 31 Expected 10.00 12.00 9.00 31.00 2.4 Find the Chi-Square critical value and test statistic. Hence, conduct a Chi-Square test of association at 5% level of significance clearly stating your decision and conclusion.

Answered: Find the Chi-Square critical value and…

Find the Chi-Square critical value and test statistic. Hence, conduct a Chi-Square test of association at 5% level of significance clearly stating your decision and conclusion

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

See similar textbooks

Related questions

Q: There are 559 full-service restaurants in Delaware. The mean number of seats per restaurant is 99.2.…

A: Given information: μ=99.2, σ=20.8, N=559M=103.4, s=18.2, n=50

Q: You want to determine the upper control line for a "p" chart for quality control purposes. You take…

A: Answer:- Given sample size, n = 100 The fraction defective, p = 0.05 and z = 3 Formula for UCL of…

Q: Given the following ANOVA table: Source DF SS MS F Regression 1 1,400.0 1,400.00…

Q: Question: You don't have to re-calculate anything. Explain why the mean and median would go up and…

A: Mean = (sum of data)/n In data : n = 22 Median : First arrange data in increasing order Than…

Q: A manufacturer of flash drives for data storage operates a production facility that runs on three…

A: Given The data is as follows: Shift Defective Not Defective 7am - 3pm 7 113 3pm - 11pm 10 90…

Q: Zt +0Zt-1, t = 1,2,..., where Zt~ IID(0, 2). Show that Xt is both weakly and strictly Let Xt =…

A: To show that a process is weakly stationary, we need to show that its mean and autocovariance…

Q: A firm experienced the demand shown in the following table. Fill in the table by preparing forecasts…

A: Given information: The year and the actual demand for that year are given.

Q: The director of special events for Sun City believed that the amount of money spent on fireworks…

A: Given information: The data for the amount of 4th of July and fall festival is given.

Q: Let's eat: A fast-food restaurant chain has 605 outlets in the United States. The following table…

A: From given data we have : NE SE SW NW total Under 50000 35 31 17 5 88 50000 62 93 72 25 252…

Q: Question: What would happen to the mean, median, and mode values, do they go up or down or stay the…

A: Mean is obtained by dividing the sum of the observations with number of observations in the data…

Q: Henry has $50 in one-dollar bills. What are the real limits of this value?

A: We have given, Henry has $50. i.e. x=$50

Q: Create a boxplot of the variable WeightGain using ggplot Plz use the info below thanks

A: This question asks us to create a boxplot of the variable WeightGain against Sex using ggplot. We…

Q: What are some common statistical techniques used in data analysis, and how are they used to draw…

A: There are numerous statistical techniques used in data analysis to draw conclusions from data. Here…

Q: a) b) c) d) Exactly 90 people say they use the Internet. At least 90 people say they use the…

A: Given the information n= 100 p=93% p= 0.93 Let X be the number of people use the Internet X follows…

Q: A sample of children aged 8 - 10 living in New York is needed to obtain a 99% confidence…

A: Here given Margin of error = 0.02 Confidence interval = 99% We have to find sample…

Q: 12. Many regions in North and South Carolina and Georgia have experienced rapid population growth…

A: Note: Since you have posted multiple questions with multiple sub parts,we will provide the solution…

Q: 5.13 A county government is interested in expanding the facilities of a day-care center for men-…

A: To estimate the proportion of families with mentally retarded children that will make use of the…

Q: a) Check the assumptions and conditions for inference. Choose the correct answer below. O A. The…

A: Given that: Sample size, n=101 Sample mean and sample standard deviation of the differences:…

Q: What is the reasoning behind setting the upper and lower control limits ± 30- from the mean? OA. We…

A: A center average line, an upper line for the upper control limit (UCL), and a lower line for the…

Q: A B C College ID Accept rate (%) Grad rate (%) 1 5 96 2 5 97 6 95 8 98 10 96 10 94 15 85 15 15 16 18…

A: Given that, The random variable X is the acceptance rate. The random variable Y is the graduation…

Q: b) For the following two problems, refer to Distribution B (continuous): i) Find g(x). UIC ii) Find…

A: As per the asked by the student we have to solve only part(b) Given that the distribution of B…

Q: Given n pairs of observations on explained variable Y and explanatory variable X , econometrician…

A: (a) The problem with adopting the criterion of minimizing Σe is that it does not take into account…

Q: A medical researcher wants to test the effectiveness of a new drug in treating a certain disease.…

A: To test the hypothesis that the new drug is effective in treating the disease, the researcher should…

Q: In a survey of 104 pet owners, 19 said they own a dog, and 52 said they own a cat. 15 said they own…

A: GivenTotal no.of pet owners=104No.of owners own a dog=19No.of owners own a cat=52No.of owners bot a…

Q: The owner of Maumee Ford-Volvo wants to study the relationship between the age of a car and its…

A: Given information: The age and the selling price of 12 cars are given.

Q: Historically, the SAT score of a randomly selected student has an unknown distribution with a mean…

A: Given,sample size(n)= 44mean(μ)=1510standard deviation(σ)=345.1

Q: Miel is concerned about the development of his 3-month old baby. The average weight of 3-month old…

A: given data, The average weight of 3-month old boys is 14 lbs with a standard deviation of 1.5 lbs.…

Q: A survey of US adults found that 35% say their favorite sport is football. You randomly select 150…

A: X is a random variable that such that each outcome of the random variable can be classified based on…

Q: Question: What is the Law of Large Numbers in probability theory?

A: Given The law of large number in probability theory is given below...

Q: A probability experiment is conducted in which the sample space of the experiment is…

A: Answer:- Given, the sample space of the experiment is, S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}…

Q: Question 4 Given an interval (30,36), find the center and the radius of the interval: the center is…

A: Sol:-

Q: 0. A regional planner employed by a public university is studying the demographics of nine counties…

A: This study examines the correlation between the median income and median age of nine counties in the…

Q: Heating oil is to be poured at the constant rate of 4.5 gallons per minute into a 400-gallon tank…

A: Answer:- Given , Heating oil is to be poured at the constant rate of 4.5 gallons per minute into a…

Q: The mean value in a dataset is 100, and the value of one standard deviation is 20. What is the value…

A: given data mean(μ) = 100sd(σ) = 20for score that is 2.5 SD above mean, x = ?

Q: Suppose that a random sample of 16 recently sold houses in a certain city has a mean sales price of…

A: We have given that Sample size (n) = 16Sample mean (x̅) = 280000Standard deviations (s) =…

Q: The following regression output was obtained from a study of architectural firms. The dependent…

A: Given information: The regression output was obtained from a study of architectural firms is given.

Q: consider the set of families having two children. Assume that the four possible birth sequences…

A: Let b=boy g=girlif a family having two children than the possible outcomes ares={bb,bg,gb,gg}

Q: A new approach for teaching mathematics was introduced that engages students in group investigations…

A: From the given out a) null and alternative hypothesis is Ho : mu1-mu2 = 0 Ha : mu1-mu2=/ 0

Q: A candy company is testing to see if their two top-selling candies differ in their sourness. The…

A: Given: Candy A Candy B 9 7 6 1 4 3 6 4 7 8 10 7

Q: An incubation period is a time between when you contract a virus and when your symptoms start. By…

A: It is given that Sample mean = 7.16 Population standard deviation = 1.6 Sample size, n = 34

Q: An instructor grades as follows: unit exams 20%, project 30%, and final exam 50%. A student had…

Q: [Statistics] How do you find the point estimate? The data is given below Pollution Group 40 1 16…

A: The pooled variance is the point estimate of the common variance based on the samples from both the…

Q: A probability experiment is conducted in which the sample space of the experiment is S =…

A: given data sample space (s) : {4,5,6,7,8,9,10,11,12,13,14,15} event E : {7,8,9} find outcomes in…

Q: A statistical program is recommended. You may need to use the appropriate appendix table or…

A: Given the data as xi 22 24 26 28 40 yi 17 26 36 40 75

Q: 1. Describe the probability distribution of X and state its parameters μ and o: X~ unknown (μ = 29.7…

Q: Question #1 My neighbours seem to enjoy walking. Recently I did a small survey to see if the number…

A: This question investigates the relationship between the number of miles walked by a group of 36…

Q: A telephone survey of 940 randomly selected adults was taken shortly after the United States began…

A: Given information n=940, X=850, level of significance ɑ=0.06

Q: A researcher believes that 9%9% of pet dogs in Europe are Labradors. If the researcher is right,…

A: The true proportion of dogs in Europe, which are defined as Labradors is 9%. The sample size, n=554.…

Q: Derive the Least Squares Estimator 3 of the parameter 3 in the no-intercept model Y₁ = Bα₁ + Ei,

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer 1 question at a…

Q: A sample of 314 patients between the ages of 38 and &82 were given a combination of the drugs…

A: Given The data is as follows: Sample size, n=314 Sample mean, x¯=0.94 Population standard deviation,…

Question

A Deputy Registrar at a certainty university conducted a Chi-Square test of association to establish whether or not employee grade and level of absenteeism were associated. Table 2 below shows part of the results which were obtained.

Table 2: Cross tabulation of employee grade and level of absenteeism

Contingency Tables
	Grade
LAbsence		1	2	3	Total
low		Observed		8		1		0		9
	Expected		2.90		3.48		2.61		9.00
high		Observed		2		11		9		22
	Expected		7.10		8.52		6.39		22.00
Total		Observed		10		12		9		31
	Expected		10.00		12.00		9.00		31.00

2.4 Find the Chi-Square critical value and test statistic. Hence, conduct a Chi-Square test of association at 5% level of significance clearly stating your decision and conclusion.

Definition Definition Visual representation of the relationship between two or more categorical variables. A contingency table is a categorical version of the scatterplot, which is used to visualize the linear relationship between two variables.

Expert Solution