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The growing season for a random sample of 25 U.S. cities were recorded, yielding a sample...

The growing season for a random sample of 25 U.S. cities were recorded, yielding a sample mean of 190.7 days and the sample standard deviation of 54.2 days.

a) Find the 95% confidence interval of the population mean of the days of the growing season.

b) Interpret the confidence interval from part a)

Math   Statistics-And-Probability   
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Answer #1

Confidence interval calculation.

Here population standard deviation is unknown so, t test confidence interval calculation.

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