It has been hypothesized that, on average, employees spend one hour a day playing video games...

It has been hypothesized that, on average, employees spend one hour a day playing video games at work. To test this at her company, a manager takes a random sample of 35 employees, who showed a mean time of 55 minutes per day, with an assumed population standard deviation of 5 minutes. Calculate the test statistic What is the critical value for testing these hypotheses at α = .01? Calculate a confidence interval to test the hypotheses that the employees spend a different amount of time from one hour (60 minutes) at α = .01 and interpret.

Expert Solution

TOPIC:Confidence interval for the population mean.

orchestra answered 2 years ago

We want to investigate the average time per day students spend playing video games. We pick...

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