survey organization takes a simple random sample of 625 households from a city of 80,000 households. On the average, there are 2.3 people per sampled household, and the SD is 1.75. Circle TRUE or FALSE for each statement, and include a sentence to explain your answer. (Both must be correct to receive full credit.) Show how you get the 95% confidence.   A.TRUE or FALSE: The average household size in the whole city is between 2.16 and 2.44 with probability 95%. Explanation:    B.TRUE or FALSE: Household size in the city approximately follows the normal curve. Explanation:

Q: mple in an amusement park showed an average expenditure of $10.30 for the evening. The average…

A: In this question, the concept of average is applied. Average The arithmetic mean is the ratio of the…

Q: er the following questions. A 6.4 6.6 B 4.3 5.4 6.7 5.8 6.8 6.1 7.1 6.7 Click the icon to view the…

A: Given Data in excel sheet

Q: A restaurant server claims that 49% of the time he leaves candy with the bill, the customer "tips…

A: Given : n = 5 p = 0.49

Q: Clair: A majority of adults would erase all of their personal information online if they could. A…

A:

Q: The sample should include (Type whole numbers.) men and women.

A: Here given MOE = 0.03 confidence level = 99%

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Find z-critical value:…

Q: A researcher wants to study the proportion of people on trial for first degree murder who are found…

A: Given data: proportion: p = 0.15 Claim: The proportion of U.S teenagers between the ages of 13 and…

Q: Develop the estimated regression equation to show how overall customer satisfaction is related to…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: find the mean for the number of correct answers

A: A multiple choice test with 17 questions, each question has four possible answers, one of which is…

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Obtain the 99% confidence interval for the population standard deviation at Bank A.   The 99%…

Q: The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More…

A: Given information Mode score on a statistics exam = 83 Mode = The number having highest frequency is…

Q: On a multiple choice test with 25 questions, each question has four possible answen is correct. For…

A: We have to find mean  of correct answerfor given data ...

Q: Solve. a pollster wishes to estimate the true proportion of U.S. voters that oppose capital…

A:

Q: coronary bypass surgery: the agency for Healthcare research and quality reported that 53% of people…

A: As Prof. N. G. Das said "Let there are n trials and each having two outcomes - Success and Failure.…

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Given Data for Bank A6.4,6.6,6.7,6.8,7.1,7.3,7.5,7.9,7.9,7.9sample size(n)=10confidence level=95%

Q: the 2013 NAEP sample of Michigan twelfth-graders, the mean mathematics scores were 152 for female…

A: Solution

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: From the provided information, Sample size (n) = 10 Confidence level = 90% Level of significance (α)…

Q: a lanna's health class measures the heart rates of students after they walked for five minutes. The…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Confidenece Interval for σA is found by the following formula:n-1s2χ2α2≤σ≤n-1s2χ21-α2

Q: When taking a 32 question multiple choice test, where each question has five possible answers, it…

A: According to range rule of thumb observation above 2 standard deviation of mean and observation…

Q: The histogram below gives the length of service of members of the Department of Biology at a…

A: Given data :  No of years  faculty  0 - 5 5 5 - 10 11 10 - 15 10 15 - 20 2 20 - 25 11…

Q: listed below are waiting times (in minutes) of customers at two different banks. At Bank A,…

A:

Q: Ritais considering moving to Little Rapids for a new job. During hersearch for a house, she…

A: Since the prices are in the 45th percentile which means that the prices are more than 45% of the…

Q: The values listed below are waiting times​ (in minutes) of customers at two different banks. At…

A: Given: Bank A 6.5 6.6 6.7 6.8 7.1 7.3 7.5 7.8 7.8 7.8 Bank B 4.3 5.4…

Q: Suppose you have a group of fourth graders and a group of eighth graders, and you want to compare…

A: We have to determine which test use for given situation.

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Solution First we need to find out sample variance to compute confidence interval for population…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: For which of the following situations would a sample be used versus a population? Select all that…

A: Here we want to know situations would a sample be used versus a population.

Q: the expression in the accompanying discussion of sample size to find the size of each sample if you…

A:

Q: on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is…

A: We have to find mean  for students who guess at all  correct answers..

Q: Demetra has taken nine quizzes in an environmental conservation course, and the mean of her scores…

A: Given mean score is 77 and two lowest score which are thrown out are 62 and 64. we have to calculate…

Q: Choose the appropriate test for the following situation: You wish to test whether the mean number of…

A: We use single t test for testing the difference of population parameter for a specified value.…

Q: 7.) Kayla recently took a multiple-choice quiz in social studies class. Her ratio of correct answers…

A:

Q: Camden read about a study in which 200 vegetarians were asked to sample a fruit bar. The study…

A: Given : 170 of the 200 vegetarians surveyed disliked the bar.  margin of error, E = 4% p = 170200 p…

Q: b. One stüdent wrote 3-9 A good value to represent the range 3–9 is. c. Construct a dotplot. Choose…

A: Provided information is, a teacher surveyed the students in one of his algebra classes, asking how…

Q: Determine whether the statement describes a descriptive or inferential statistic. A survey of 1478…

A: The descriptive statistic explains the given data whereas inferential statistics help to make…

Q: No written by hand solution The Coca-Cola Company reported that the mean per capita annual sales of…

A: The data is given as- Sample mean:x¯=479.5 Sample standard deviation: s=90 Sample size: n=61

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Solution

Q: ch of the following must be true about Tom's and Leila's scores? om scored higher than Leila. Both…

A: Given that; Total number of students = 8000Tom's score = 55th percentileLeila's score = 86th…

Q: 9. Challenge A bag contains 200 red and blue marbles. Three people each took samples of 25 marbles…

A: a. To combine the samples and make a prediction, we can use the proportion of red marbles in the…