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c secure https:/Nwww.webassign.net/webistudent Assignment Responses/submitndep 16014g74 Apps Howdy OtheHuB Tri w State Bank l A... Mwels Fargo perso.. a mysuINN-Binn Co.. R WebAssign LOG IN my Tcc Blackbear. Infinity 21 central ansport- First Monitor subjects for diet compliance. A group of psychologists once measured 60 different variables on a sample of schizophrenic people. Using theses 60 variables, they did 60 separate hypothesis tests of the mean (one mean for each of the 60 variables). Two of these tests were significant at the 5% level. Suppose that in REALITY all 60 null hypotheses are true. a) What is the probability of rejecting any one specific test at the S% significance level? (m asking you the pick just one hypothesis test. Then, you need to tell me the chance that if the experime repeated for just this cne test, the new result will lead him or her to decide to reject the null hypothesis.) b) Now suppose this group of psychologists repeats all 60 experiments. About how many of the 60 hypothesis tests do we expect will have a p-value s .05? My Notes o Ask Your Teacher Previous Answers Meteorologists in Texas want to increase the amount of rain delivered by thunderheads by seeding the clouds. Without seeding, thunderheads produce, on average, 300 acrefeet. The meteorologists randomly selected 30 clouds which they seeded with silver iodide to test their theory that average acrefeet is more.

Explanation / Answer

Solution:-

a)   5% or 0.05

b) 60 * .05 = 3 null hypotheses

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