A survey shows that 3 out of 4 of those drink coffee in a town with a population is 7900 adults how many of these adults would you expect to drink coffee?

Q: %. The percentage of women that will be able to find a shoe that fits in this store is

A: According to a human modeling project, the distribution of foot lengths of women is approximately…

Q: Use the table below to answer this quesiton:   Leukemia  No leukemia  Exposed to benzene…

A: Risk of something is the odds of it taking place. The absolute risk of something happening is the…

Q: A comprehensive survey released by a college reports that the true proportion of all students at the…

A:

Q: According to the Bureau of Labor Statistics, there were 27,900 computer and research information…

A: We can draw the following table to accumulate the above information :                     YEAR…

Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

A:

Q: A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A: Given that, Critical value: Using the z-table, the critical value at 98% confidence level is,

Q: A private opinion poll is conducted for a politician to determine what proportion of the population…

A: Given  Confidence level(CI)= 0.95 Significance level (α)=1-0.95=0.05 Margin of error

Q: Situation Out of two thousand families with four children each, how many would you expect to have:…

A: Given information Number of families N = 2000 No of children n = 4 P(G) = P(B) = ½ Probability of…

Q: A recent advertisement claimed that 2 out of every 3 doctors recommended a certain herbal supplement…

A:

Q: The hockey team won 8 out of their first 14 games. At the Same Rate, how many games should they…

A: We can find the answer as below.

Q: How many people from the community will die from the pandemic if the number of infections increases…

A:

Q: In 2012, a scientist found that 30% of the adult population believe that the sun goes around Earth.…

A: The null and alternative hypotheses are given below. The sample proportion, p-cap is…

Q: In a study of over 15,000 teens, 62% of boys and 55% of girls consumed sugar-sweetened soda on the…

A:

Q: The company you work for has been tracking sales histories to forecast this coming years sales. Over…

A: Given,∑x9=99449.02∑x=895041.18

Q: of the time he is at bat. Out of 80 times at bat, 10 A player on a school baseball team reaches…

A: A player on a school baseball team reaches first base 7/10 of the time he is at bat.

Q: To receive a B in a course, you must have an average of at least 80% but less than 90% on five…

A: Given that, to receive a B in a course ,must have an average of at least 80% but less than 90% on…

Q: A group of preschoolers has 8 boys and 24 girls. What is the percentage of girls to all children?

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Q: for a sport radio show, you are asked to research the question whether more home runs are hit

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Q: In a sample of 45 men, 27 said that they had less leisure time today than they had 10 years ago. In…

A:

Q: On a psychology exam withµ= 76 and o = 12, Tom scored 9 points below the mean, Mary had a score of X…

A: From the provided information, Mean (µ) = 76 Standard deviation (σ) = 12 X~N (76, 12)

Q: After taking a series of 4 classroom examinations, John obtained a mean score of 82. How much score…

A: Mean is a part of measures of central tendency.

Q: Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

A: Correlation coefficient: Correlation coefficient measures the strength and direction of linear…

Q: A proportion .40 of the tagged birds were recovered. 150 were tagged in all. How many were…

A:

Q: Forty percent of the 25 customer who came this morning are adults and the rest are teen. How many…

A: Given: 40% of 25 customers are adults.

Q: Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

A: Given, Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

Q: uppose that the exam score for Class A is 80% and for Class B is 54%. When all the scores for both…

A: Let us assumed that percentage of the students in class A be "x"  Then the percentage of the…

Q: A sample of n equals 20 scores is transformed into z-scores what is the meaning for the set of 20…

A:

Q: Two types of medical devices used for knee replacement are being studied to see if the type of knee…

A: Given, The infection rate for a specific bacterial infection after surgery for device A is 0.0043.…

Q: worth

A: Maximum point of the test = 155 points

Q: A certain test is worth 125 points. How many points (rounded to the nearest point) are needed to…

A: Test of worth=125 pointneeded=75 %

Q: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the…

A: Given An instructor has graded 23 exam papers submitted by students in a class of 24 students, and…

Q: f the coin is flipped 100 times, how many times would you predict that the coin lands on heads in…

A: Let us assume the probability of head of the coin=pThe coin is tossed 100 times.So the expected…

Q: The high tech industry claims that women have the same chance of being hired as men. If this is so,…

A: In this question, we need to find the expected number of company to have 11 or more female…

Q: The smallest score in a population is X= 5 and the largest score is X= 10. Based on this…

A: 3. The smallest score of the population is X = 5 and largest score is X = 10. The mean for this data…

Q: There are a total of 165 students in 7th grade. 33 of those students chose to be fully virtual. What…

A: To find out the percentage of students who are fully virtual.

Q: We have 25 days of school left how many weeks of school is that?

A:

Q: when you were a freshman, there were 350 students in your class. in recent years, only 4 out of 7…

A: Total number of student in class: 350

Q: In a survey at a local university 52% of students say that they less than the recommended eight…

A: The problem concerns working out the percentages and interpreting .

Q: 4 were on time and 2 were late, how many of the next 12 trains would you expect to be on time?

A: The probability that the train would be on time is, Pon time=46=23 The probability that the train…

Q: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

A: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

Q: If a person is dealt 13 cards from an ordinary deck of 52 playing cards several times, how many…

A:

Q: A survey found that 31% of Americans watch the fireworks on the 4th of July from their TV. If 20…

A:

Q: In a company, 22% of the workforce are in sales, 56% of the workforce are male and 65% of the…

A: Probability is defined as a number between 0 and 1 representing the likelihood of an event…

Q: The admission fee at a local zoo is $1.50$1.50 for children and $6.00$6.00 for adults. On a certain…

A:

Q: Of all the species in the world, 4 out of every 5 are insects. What percentage of species are…

A:

Q: A nursing school professor is interested in determining how her college students compare to the…

A: Let X denote the exam score, then assuming that X is normally distributed with mean, µ = 100 and a…

Q: From classified quantitative data, it was found that the range has (72) and the number categories…

A: Range: Range is the difference between lowest value and highest values.

Q: On a test, 95% of the questions are answered correctly.  If 57 questions are correct, how many…

A: The aim is to find the number of questions on the test.Here, the number of question answered…

Q: Recently, an analyst in a company's marketing department surveyed customers regarding how often they…

A: Non-sampling error: In a survey, the error that are unrelated to sampling is called non-sampling…

Q: Situation Out of two thousand families with four children each, how many would you expect to have:…

A: If we consider two genders : Male and Female  The chances of having a boy or girl is equally likely…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.