Washington State University Statistical Hypothesis Testing Macro Economics Questions

Description

To better assess your willingness to pay for advertising on others websites, you want to learn the mean profit per visit for all visits to your website. To accomplish this, you have collected a random sample of 4,738 visits to your website over the past six months. This sample includes information on visit duration and profits. The data are contained in WebProfits.xlsx (See the attached) Using the data in WebProfits.xlsx:

Build a 99% confidence interval for the mean profit per visit for all of your visitors.

Let the null hypothesis be that the mean profit per visit for all of your visitors is $11.50.

Calculate the corresponding t-stat for this null hypothesis.

Calculate the corresponding p-value for this null hypothesis.

With strength of 95%, decide whether or not to reject this null hypothesis.

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