Please review Section 9.2. A marketing researcher wants to estimate the mean amount spent per year ($) on a web site by membershipmember shoppers. Suppose a random sample of 100 membership member shoppers who recently made a purchase on the web site yielded amean amount spent of $60 and a standard deviation of $56. Use technology to solve and include files and/or screen shots.Is there evidence that the population mean amount spent per year on the web site by membership member shoppers is different from $52?a =0.05H:µ= 52H : µ # 52Identify the critical value(s):(Round to two decimal places as needed.)Determine the test statistic:(Round to two decimal places as needed.)State the conclusion:

Answered: Image /qna-images/answer/f88e31e2-ace4-457b-9cb2-52cfeba62fca.jpg

Answered: A marketing researcher wants to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You may need to use the appropriate appendix table or technology to answer this question. Allegiant Airlines charges a mean base fare of $89. In addition, the airline charges for making a reservation on its website, checking bags, and inflight beverages. These additional charges average $39 per passenger.+ Suppose a random sample of 57 passengers is taken to determine the total cost of their flight on Allegiant Airlines. The population standard deviation of total flight cost is known to be $40. (a) What is the population mean cost per flight in dollars? $ (b) What is the probability the sample mean will be within $10 of the population mean cost per flight? (Round your answer to four decimal places.) (c) What is the probability the sample mean will be within $5 of the population mean cost per flight? (Round your answer to four decimal places.) Need Help? Read It
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An economist would like to estimate the mean amount of money that afamily spends to within $36. If the amount spent by a family isconsidered to be normally distributed with a standard deviation of $200,what sample size would be necessary to be 91% confident? Draw the graph.
Considering salary of employee's in a company, the mean salary of managers is $102,000 per year. Is this number a statistic or parameter?
A study reported on essential organic molecules and a Normal model can be used to describe these levels in adults. If the mean is 194 mg/dL and a standard deviation is 28, complete the following questions. a) Draw and label the Normal model. b) What percent of adults do you expect to have this essential organic molecule, cholesterol, levels over 210 mg/dL? c) What percent of adults do you expect to have cholesterol levels between 150 and 170 mg/dL? d) Estimate the interquartile range of cholesterol levels. IQR=___________mg/dL e) Above what value are the highest 15% of adults' cholesterol levels? ___________mg/dL
The last class of data to be examined is grouped data vs. ungrouped data. Differentiate between the two giving an example to assist with your explanation. Given the list of numbers, 13. 15. 19, 21, 12, 18, 16, 15, 17. Find , mean mode, median, range, interquartile range, and standard deviation
Suppose that the annual household income in a small Midwestern community is normally distributed with a mean of $55,000 and a standard deviation of $4,500. What minimum income does a household need to earn to be in the top 5% of incomes? What maximum income does a household need to earn to be in the bottom 40% of incomes?
Compute standard deviation for the following data : 5, 8, 7, 11, 9, 10, 8, 2, 4, 6.
Suppose a new drug is intended to improve walking distance in patients with Parkinson’s Disease. A researcher measures patients’ walking distance in feet before and after trying the drug for 9 weeks. What type of statistical test
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The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6 years for whites and 33 years for nonwhites. (Click here for reference data) Suppose a survey of randomly selected death records for white and nonwhite people born in 1900 from a certain county is conducted. Of the 110 whites surveyed, the mean life span was 48.2 years with a standard deviation of 11.2 years and of the 95 nonwhites, the mean life span was 39.3 years with a standard deviation of 16 years. Conduct a hypothesis test at the 0.05 level of significance to determine whether there was no difference in mean life spans in the county for whites and nonwhites in year 1900. Preliminary: Is it safe to assume thatnw≤5% of all white people born in 1900 andnnw≤5% of all nonwhite people born in 1900? No Yes Is nw≥30 and nnw≥30 ? No Yes Test the claim: Determine the null and alternative hypotheses. H0: μw μnw Ha: μw μnw Determine the test statistic. Round to four…
Determine the range, mean, and standard deviation of the data set. {9,5,9,17,17,16,3,8} Please note that I did submit this question earlier but was unable to recognize the answers so I would appreciate it if it the answers are written clearly. Thank you

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