The annual earnings (in dollars) for 30 randomly selected locksmiths are shown below. Assume the population is
Question:
The annual earnings (in dollars) for 30 randomly selected locksmiths are shown below. Assume the population is normally distributed.
(a) Construct a \(95 \%\) confidence interval for the population mean annual earnings for locksmiths.
(b) A researcher claims that the mean annual earnings for locksmiths is \(\$ 53,000\). At \(\alpha=0.05\), can you reject the researcher's claim? Interpret the decision in the context of the original claim.
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a 4999692 5703914 b There is not ...View the full answer
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9781292260464
7th Global Edition
Authors: Betsy Farber, Ron Larson
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