PLEASE FOR THE LOVE OF CHRIST SOMEONE HELP ME ANSWER THESE INCORRECT ANSWERS AND DONT GIVE ME THE SAME ANSWER! THIS IS MY THIRD TIME DOING THIS AND NOBODY HASN'T ANSWERED MY QUESTIONS.

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Consider the following results for independent random samples taken from two populations. Sample 1 n1 2 10 51 = 22.8 .91 = 2.1 Sample 2 n2 = 40 52 = 20.3 52 = 4.6 a. What is the point estimate of the difference between the two population means (to 1 decimal)? b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)? 2.5 Q0 480 c. At 95% confidence, what is the margin of error (to 1 decimal)? 30 Hint(s) Check My Work d. What is the 95% confidence interval for the difference between the two population means (to 1 decimal and enter negative value as negative number)? ( -o.5 0 5.5 0) Consider the following data for two independent random samples taken from two normal populations. Excel File: data10-11.xIsx Sample 1 10 7 13 7 9 8 Sample 2 8 7 8 4 6 9 a. Compute the two sample means. (to nearest whole number) X1 = 9 2 = b. Compute the two sample standard deviations. (to 2 decimals) $1 2.28 = 1.79 c. What is the point estimate of the difference between the two population means? 2 d. What is the 90% confidence interval estimate of the difference between the two population means? (to 2 decimals and enter negative value as negative number) -0.35 4.35\fConsider the following hypothesis test. Ho =u1 #2 = 0 Ha : #1 _ #2 0 The following results are from independent samples taken from two populations. Sample 1 Sample 2 71.1 = 35 R2 = 40 El = 13.6 E; = 10.1 81 = 5.7 52 = 8.6 a. What is the value of the test statistic (to 2 decimals)? 2.1 Q0 b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)? 730 c. What is the p-value? Use Table 2 from Appendix B. The area in the upper tail is between 0.01 and 0.025 v w ; twotailed pvalue is between 0.02 and 0.05 v M. d. At a = 0.05, what is your conclusion? p-value is I less than or equal to 0.05, reject V, 9 H0 The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airlines compet- is ontime arrival. The file LateFIights contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Delta and Southwest. Click on the datafile logo to reference the data. DATAF Delta Southwest Delta Southwest Delta Southwest Delta Southwest Delta 116 42 6 77 146 113 148 25 126 68 1 14 7 91 1 12 67 49 92 31 149 128 78 111 12 134 139 139 11 124 91 18 34 51 17 5 106 65 62 126 26 116 17 109 141 70 12 a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. #1 2 population mean minutes late for delayed Delta flights [.12 = population mean minutes late for delayed Southwest flights H0=M1'M_K\\'00 Hamlin\"90 b. What is the sample mean number of minutes late for delayed flights for each of these two airlines? Sample mean for Delta = 68.76 \"-0 (rounded to 2 decimals) Sample mean for Southwest = 90.10 \"-0 (rounded to 2 decimals) c. Using a 0.05 level of signicance, what is the pvalue and what is your conclusion? df = 43 0 (rounded down to nearest whole number) p-value = .1400 0 (rounded to 4 decimals) We 9 Ho. \fThe Tippie College of Business obtained the following results on the salaries of a recent graduating class: Finance Majors Business Analytics Majors n1 2 105 11.2 = 40 E1 = $48,800 E2 = $55,300 51 = $20,000 .52 = $13,500 a. Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that salaries for Finance majors are significantly lower than the salaries of Business Analytics majors. Use a = 0.05. H0.m,,._@0 HawrMwt) b. What is the value of the test statistic? Enter negative value as a negative number, if any. -2.25 Q0 (rounded to 2 decimals) c. What is the pvalue? df = 143 0 (rounded down to nearest whole number) pvalue = .013 M (rounded to 3 decimals) d. What is your conclusion? We Q9 that the salaries of Finance majors are lower than the salaries of Business Analytics majors