Question: A recent research study reported that American cell phone usage is increasing. The report stated that Americans are using their phones an average of 5.8

A recent research study reported that American cell phone usage is increasing. The report stated that Americans are using their phones an average of 5.8 hours per day. If the standard deviation for the number of hours of cell phone use per day is 2.2 and a random sample of 375 Americans is selected for further study, answer the following questions about the sampling distribution: 1) The mean cell phone hours of this sample of n=375 belongs to a sampling distribution. What is the shape of this sampling distribution? 2) What is the mean of all the samples - the "Expected value of the Mean"? 3) What is the standard deviation of the sampling distribution? 4) If alpha = .05, and the sample mean was 6.1 hours per day of phone use, was this an unusual sample - yes or no

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