An earlier study claimed that U.S. adults spent an average of 114 minutes per day with their
Question:
a. Using a 1% significance level, test whether the mean time spent currently by all adults with their families in this city is different from 114 minutes a day.
b. Suppose the probability of making a Type I error is zero. Can you make a decision for the test of part a without going through the five steps of hypothesis testing? If yes, what is your decision?
Explain.
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