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1) Use either the critical value or p-value method for testing hypotheses. 2) Identify the null...

1) Use either the critical value or p-value method for testing hypotheses.
2) Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), and critical value(s).
3) State your final conclusion that addresses the original claim. Include a confidence interval as well and restate this in your original conclusion.

A credit card company wondered whether giving frequent flier miles for every purchase would increase card usage. The population mean had been $2500 per year. A simple random sample of 51 credit card customers found the sample mean to be $2542 with a standard deviation of $110. Test the claim at the 0.05 Significance Level that the credit card mean usage for the population is now more than $2500 per year.

math   Statistics-And-Probability   
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Answer #1

I have answered the question below

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Answer:

z = 2542 - 2500/110/sqrt(51) = 2.73

p value = 0.0032

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