A Random Sample of 15 Telephone Calls in an Office

question 12

Short Answer

A random sample of 15 telephone calls in an office showed the duration of each call and whether it was a local or a long distance call.

a.What is the point estimate for the average duration of all calls?
b.What is the point estimate for the standard deviation of the population?
c.What is the point estimate for the proportion of all calls that were long distance?

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The developmental stage during which children mature sexually and physically, enabling the capability of reproduction.