Hello, I need help trying to find the solution for these problems. I can't get my hands around it. Thanks! 21,29,30

Find the F-test statistic to test the claim that the population variances are equal. Both distributions are normal. The standard deviation of the rst sample is 4.5656 6.7174 is the standard deviation of the second sample. Add Work > Next Question Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. Use your calculator! X y 5 20.15 6 20.76 7 17.77 8 19.48 9 15.49 10 16.2 11 14.81 12 15.02 13 14.23 14 14.64 15 13.55 16 14.46 17 12.47 18 10.48 19 11.69 20 12.1 Add WorkLinear Regression Use linear regression to find the equation for the linear function that best fits this data. Round both numbers to two decimal places. Write your final answer in a form of an equation y = mx + b X 2 3 4 5 6 y 92 108 130 148 160 176 Add Work