Question

1. A consumer analyst reports that the mean life of a certain electronic reader is 74...

1. A consumer analyst reports that the mean life of a certain electronic reader is 74 months. What are the appropriate hypotheses to test this claim?

2. A simple random sample was taken. Compute a 95% confidence interval for the population mean using the following values.

[n=46,σ=23.4,X=52.8]

Homework Answers

Answer #1

1) Statement : A consumer analyst reports that the mean life of a certain electronic reader is 74 months.

Hypothesis :- Ho :- mu = 74 (claim )

Ha :- mu 74

2) 95% confidence interval

46.038 < mu< 59.562

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