Find a 95 confidence interval for the population mean pulse, Basic Statistics

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Find a 95 confidence interval for the population mean pulse

Men's Pulse Rates

A random sample of 25 men's resting pulse rates shows a mean of 72 beats per minute and a standard deviation of 13.

a. Find a 95% confidence interval for the population mean pulse rate for men, and report it in a sentence. You may use the table given for Exercise .

b. Find a 99% confidence interval.

c. Which interval is wider and why?

Exercise

t* A researcher collects one sample of 27 measurements from a population and wants to find a 95% confidence interval. What value should he use for t*? (Recall that df = n - 1 for a one-sample t-interval.)

1955_Mens Pulse Rates.png

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Basic Statistics: Find a 95 confidence interval for the population mean pulse

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