Question

A consumer interest group buys a brand-name kitchen appliance. During its first month of use, the appliance breaks. The manufacturer claims that 99% of its appliances work for a year without a problem.
(a) State the appropriate null hypothesis that will facilitate a hypothesis test to analyze this claim.
(b) Do the data supply enough information to reject the null hypothesis? If so, at what α-level?


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  • CreatedJuly 14, 2015
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