Mathematics, 19.12.2019 01:31 amandanunnery33
Geoff is the proud owner of a restaurant. recently he read an article in food weekly which stated that the population mean preparation time for food at popular restaurants is equal to 21 minutes. a footnote at the bottom of the article said that the population standard deviation of preparation times was equal to 7 minutes. geoff is interested in determining whether his restaurant has the same average preparation time as the popular restaurants described in the magazine article. geoff timed how long it took to prepare 33 randomly selected meals over a week. the mean preparation time for the sample was calculated as 19 minutes. geoff would like to use his sample to construct a hypothesis test with h0: μ = 21 and ha: μ ≠ 21.
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:30, janeou17xn
Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
Answers: 1
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Mathematics, 21.06.2019 21:00, makayla10119
When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years
Answers: 1
You know the right answer?
Geoff is the proud owner of a restaurant. recently he read an article in food weekly which stated th...
Questions in other subjects:
History, 02.03.2021 14:00
Mathematics, 02.03.2021 14:00
Computers and Technology, 02.03.2021 14:00
