STAT 400 Midterm: STAT400_BOYLE-M_SPRING2004_0101_MID_EXAM_3

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Let x denote the number of elmer"s con dence intervals which will contain . How large should elmer make his sample size? (suppose elmer is using the traditional, simple, method-of-moments (100 )% con dence interval for a population proportion: p z /2p p(1 p)/ n. : (20 points) for each part, write true or false. No proof necessary. (a) if a hypothesis test is run at level of signi cance = . 10, and the resulting. ***there are more problems on the back side*** Typeset by ams-tex: (25 points) elmer gets a job as a librarian. He decides the annual inventory of books should be postponed if the proportion of misshelved or unlocatable books is less than . 02 . So, elmer selects at random 1000 books from the library"s collection and nds that 15 of them are misshelved or unlocatable. If this evidence indicates strongly that the true proportion of misshelved or unlocatable books is less than.