Mathematics, 28.04.2021 21:40 kingcory717

A random sample of 8 years of Denver, Colorado weather records gave a sample average number of sunny days per year of 263 sunny days with standard deviation 24 days. An independent random sample of 6 years of weather records from Phoenix, Arizona had an average of 296 sunny days per year with standard deviation 18.3 days. Test to see if the population mean numbers of sunny days are different for the two cities. Use a 1% significance level.

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A random sample of 8 years of Denver, Colorado weather records gave a sample average number of sunny...