FizeauV

2021-05-13

Assume the sample is from a normally distributed population and construct the indicated confidence intervals for (a) the population variance ${\sigma }^{2}$ and (b) the population standard deviation σ. Interpret the results. The record high daily temperatures (in degrees Fahrenheit) of a random sample of 64 days of the year in Grand Junction, Colorado, have a sample standard deviation of 16.8∘F. Use a 98% level of confidence.

Willie

Variance: (201.1915, 474,3510)
Standard deviation: (14.1842, 21.7796)

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