A random sample of 12 second-Year University students enrolled in a business statistics course was drawn. At the course’s completion, each student was asked how many hours he or she spent doing homework in statistics. The data are listed here. It is known that the population standard deviation is σ = 8.0. The instructor has recommended that students devote 3 hours per week for the duration of the 12-week semester, for a total of 36 hours. Test to determine whether there is evidence that the average student spent less than the recommended amount of time. Compute the p-value of thetest.
Answer to relevant QuestionsThe owner of a public golf course is concerned about slow play, which clogs the course and results in selling fewer rounds. She believes the problem lies in the amount of time taken to sink putts on the green. To investigate ...A dean of a business school claims that the Graduate Management Admission Test (GMAT) scores of applicants to the school’s MBA program have increased during the past 5 years. Five years ago, the mean and standard deviation ...Many Alpine ski centers base their projections of revenues and profits on the assumption that the average Alpine skier skis four times per year. To investigate the validity of this assumption, a random sample of 63 skiers is ...a. The mean and standard deviation of a sample of 100 is x̄ = 1500 and s = 300. Estimate the population mean with 95% confidence.b. Repeat part (a) with s = 200.c. Repeat part (a) with s = 100.d. Discuss the effect on the ...a. A statistics practitioner wishes to test the following hypotheses:H0: µ = 600H1: µ < 600A sample of 50 observations yielded the statistics x̄ = 85 and s = 45. Calculate the test statistic of a test to determine whether ...
Post your question