A random sample of 800 home owners in a particular city found 208 home owners who had a swimming pool in their backyard. Find a 95% confidence interval for the true percent of home owners in this city who have a swimming pool in their backyard. Express your results to the nearest hundredth of a percent. Answer: ☐ t to %

Q: Answer the next 2 questions using the following information. The US Department of Energy reported…

A: The hypotheses can be constructed as: Null hypothesis: H0: p = 0.517 Alternative hypothesis: H1: p ≠…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given dataThe number of hours per week that the television is turned on is determined for each…

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: Complete the following statement. If you are asked to find the 85th percentile, you are being asked…

A: If you are asked to find the 85th percentile, you are being asked to find

Q: 2. Consider the following sample data: A.) Calculate the mean. 3 24 30 47 23 B.) Calculate the…

A:

Q: Helga scored in the 70th percentile rank on an exam. If 300 students took the exam, how many…

A: Given: percentile rank of Helga: 70th           total number of students who took exam: 300 students…

Q: The following data are the score of 24 students in Midterm Examination. Find the 67th percentile. If…

A: From given data we have :

Q: From the data below, a.the value of 60th percentiles P60 b.the value of the 95th percentile P95

A: Given,sample size(n)=50the given data is already arranged in ascending order.

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given that mean = 32 hours Median = 28.2 hours 7th percentile = 17 hours

Q: The test scores for five students were 59, 60, 63, 76, and 87. How many points greater than the…

A: The mean is the average of all the values, or it is the sum of all the values divided by the number…

Q: Howard scored in the 55th percentile rank on an exam. If 400 students took the exam, how many…

A: Note:Hi there! Thank you for posting the question. To avoid plagiarism issues, we have used the…

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

Q: In a class of 10 students, James got 3rd position from the lowest. What is his percentile rank?

A: Given data: In a class of 10 students, James got 3rd position from the lowest. To find: What is his…

Q: Celyn is among the 1500 students of the school.If Celyn's score based on the Standard-Binet test is…

A: Given: Number of students = 1500 Score on standard Binest test is 105

Q: A sample consists of n = 16 scores. How many of the scores are used to calculate the range?

A:

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Given: Accuracy of the test is 86% Inaccuracy of the test = 100-86% = 14% N = Total number of…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given that there are 24 families in the sample.  Mean=31 Median=27.2 7th percentile= 16 hours

Q: A veterinarian recorded how many kittens were born in each litter. This data is summarized in the…

A: A histogram is a graphic representation of data that uses bars of various heights. Each bar in a…

Q: During the scholarship examination of a certain scholarship grant taken by 10,000 applicants,…

A: Given : Annabelle score (x) =350total number of applicant =10000Number of rank below x =8995

Q: Three hundred twenty students took a test where the scores are normally distributed. Paul's score…

A:

Q: A class of students took a test. The instructor said that the 75th percentile score was 90 out of…

A: The solution is as follows,

Q: Find the probability of selecting either a non-smoker or a woman when you select a person at random…

A:

Q: A recent poll of Ms. Vergara's 160 students revealed the following.  They were asked if they did or…

A: Let U be the set of all students. Now U=160. A denotes the set of all students who studied hard for…

Q: The scores on a statewide math exam were normally distributed with ?=74 and ?=8. What proportion of…

A: GivenMean(μ)=74standard deviation(σ)=8

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given data The number of hours per week that television is turned on is determined  The mean of data…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: From the above data  We are given that  Median =26.2 hours

Q: Find the z score for the 55th percentile.

A: Percentile= 55th  = 0.55 P(Z=z)= 0.55

Q: Find the percentage of scores of the following

A: Given,μ=0s=1

Q: Most adults would erase all of their personal information online if they could. A software firm…

A: The sample size is 502. The probability of successes is 0.65. We have to find the value of the test…