In1990 58 ofjob applicants whowere testedfor drugsfailed, Ask an Expert

Statistics

In1990, 5.8% ofjob applicants whowere testedfor drugsfailed thetest.
A randomsample of1440currentjobapplicantsresults in61failures (basedloosely on datafromthe AmericanManagementAssociation).

Attheα=0.01significancelevel, testthebelowclaim(i.e.,thatthefailure rateis now lower)

HO:p = 0.058
HA:p <0.058

a) Is thisanuppertail,lower tail,or two-tailtest?(5points)
b) Are we testing meansor proportions?(5points)
c)Statethe rule ofrejection(in termsofp-valueandlevel ofsignificance) (5points)
d) Findthep-value(5points)
e) Shouldyourejector notreject HO?(5points)
f) Does theresult suggestthatfewer job applicantsnowuse drugs?(5 points)

Software to help with the question but I don't know exactly where to start.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91024175

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