I need help with this stats questions:

It has been suggusted that the highest priority of retirees is travel. Thus, a study was conducted to investigate the differences in the length of stay of a trip for pre- and post-retirees. A sample of 676 travelers were asked how long they stayed on a typical trip. The observed results of the study are found below. You may round all answers for this problem to the nearest hundredth. Number of Nights Pre-retirement Post-retirement Total 4 7 242 166 408 8 13 75 65 140 14 21 32 53 85 22 or more 12 31 43 Total 361 315 676 With this information, construct a table of estimated expected values. Use two digits after the decimal. Number of Nights 47 Pre-retirement Post-retirement 813 1421 It! [lit 1 It! [lit It! i!!! i It! i!!! 22 or more Now, with that information, determine whether the length of stay is independent of retirement using a = 0.05. (a) x2 = Use three digits after the decimal. i It! (b) Find the degrees of freedom: (c) Find the critical value: E Try using all the digits Minitab will give you. (d) The final conclusion is (T A. We can reject the null hypothesis that the length of stay is independent of retirement and accept the alternative hypothesis that the two are 7 dependent. F\". B. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement