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In: Statistics and Probability

A sample of movie concessions purchases yielded the following: 27.50 18.65 12.10 36.45 19.50 21.40 28.70...

A sample of movie concessions purchases yielded the following:

27.50 18.65 12.10 36.45 19.50 21.40 28.70 14.55 7.60 43.50 23.25 17.60

a. what is the population mean guess

b. What is the standard deviation of the estimate for the population?

c. A 90% confidence interval will have a range of ?

d. A 95% confidence interval with have a value range of ?

Solutions

Expert Solution

a)

b)

C)

d)

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orchestra answered 1 year ago
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