7. (6 points) construct a 95% confidence interval estimate for the population me

Question

7. (6 points) construct a 95% confidence interval estimate for the population mean give the following values: x- 70; o 15:n 65 8. (8 points) The Smithers Company operates gourmet pet food sales. The company's selected a random sample of 200 sales during 2016. The following data were collected: The mean sample sale price was $45.00; the population standard deviation is 12.00. Determine the 90% confidence interval estimate for the true average sales price for gourmet per food sales by the company.

Explanation / Answer

11) Option C

Z critical value at 90% Confidence level is =1.645

12) Option C

H0: Mu is lessthan or equals to 1700

H1: Mu >1700

13) Option A

The population mean is equals to 55

15) Option C

H0: Mu <=25000

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