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In a recent reported study, the mean age of laptop users is 34 years with the...

In a recent reported study, the mean age of laptop users is 34 years with the standard deviation of 15 years. For a sample of randomly chosen users of size n = 100, answer the following questions:


A. What are the mean and standard deviation for the sample mean ages of laptop users?  

B.  What does the distribution look like?

C.  Find the probability that the sample mean age is more than 30 years (the reported mean age of laptop users in this particular study).


Math   Statistics-And-Probability   
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