Mathematics, 29.07.2020 02:01 doanh27
Company A is trying to sell its website to Company B. As part of the sale, Company A claims that the average user of their site stays on the site for 10 minutes. Company B is concerned that the mean time is significantly less than 10 minutes. Company B collects the times (in minutes) below for a sample of 18 users. Assume normality.
e-22 | 6 | 6 | 1 | 2 | 2 | 3 | 4 | 1 | 6 | 7 | 8 | 9 | 6 | 1 | 5 | 3 | 3 4 5 | 3 | 5 | 0 | 2 | 1 | 1 | 0 | 0 | 1 | 5 | 4 | 1 | 0 | 2 |
Conduct the appropriate hypothesis test for Company B using a 0.03 level of significance.
a) What are the appropriate null and alternative hypotheses?
H0: μ = 10 versus Ha: μ < 10H0: x = 10 versus Ha: x ≠ 10 H0: μ = 10 versus Ha: μ ≠ 10H0: μ = 10 versus Ha: μ > 10
b) What is the test statistic? Give your answer to four decimal places.
c) What is the critical value for the test? Give your answer to four decimal places.
d) What is the appropriate conclusion?
da) Reject the claim that the mean time is 10 minutes because the test statistic is smaller than the critical point.
db) Reject the claim that the mean time is 10 minutes because the test statistic is larger than the critical point.
dc) Fail to reject the claim that the mean time is 10 minutes because the test statistic is smaller than the critical point.
dd) Fail to reject the claim that the mean time is 10 minutes because the test statistic is larger than the critical point.
Answers: 2
Mathematics, 21.06.2019 19:30, Pen350
Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck
Answers: 2
Mathematics, 21.06.2019 22:00, arrissa1234hinkle
Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.
Answers: 1
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