(Solved): In a study, temperature readings were taken at different locations in 1980 and in 2001 . The avera ...

In a study, temperature readings were taken at different locations in 1980 and in 2001 . The average daily temperatures for the month of June in each of 31 different locations are listed below. We would like to see if there is any difference between the mean temperatures of 1980 and 2001 . If you believe the populations are independent, then assume the population variances are equal. Perform a statistical test. (a) What are the null and alternative hypotheses? (b) What is the test statistic? (Round your answer to 3 decimal places, if needed.) (c) Using the statistical table, the p-value is (d) Based on the p-value, the null hypothesis at the significance level of \( 0.01 \). (e) This data sufficient evidence to conclude that the mean temperature in 1980 is the mean temperature in \( 2001 . \)