Find a 95% confidence interval for the mean mass of all spills with an elapsed t

Question

Find a 95% confidence interval for the mean mass of all spills with an elapsed time of 5 minutes. Interpret the result. What is the confidence interval? (4.082, 5.336) (Round to three decimal places as needed.) Interpret the result. Choose the correct answer below. A. We are 95% confident that the interval will contain the mean mass of the spill before 5 minutes has passed. B. We are 95% confident that the interval will not contain the mean mass of the spill at 5 minutes. C. We are 95% confident that the interval will contain the mean mass of the spill after 5 minutes. D. We are 95% confident that the interval will contain 5 minutes.

Explanation / Answer

Sol:

since population mean=5

and its present in interval

4.082<5<5.336

we are 95% confident that the interval will contain 5 minutes

ANSWER D

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