Delta Southwest Delta Southwest Delta Southwest Delta Southwest Delta 113 49 142 66 16 138 80 120 49 36 56 7 131 45 58 33 29 119 113 31 39 125 74 111 57 67 25 82 110 26 141 90 94 26 54 49 113 89 13 31 16 9 143 115 51 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. μ₁ = population mean minutes late for delayed Delta flights μ2 = population mean minutes late for delayed Southwest flights Ho 1-2 Ha 1-2 * 0 0 b. What is the sample mean number of minutes late for delayed flights for each of these two airlines? Sample mean for Delta = Sample mean for Southwest = (rounded to 2 decimals) (rounded to 2 decimals) c. Using a 0.05 level of significance, what is the p-value and what is your conclusion? df (rounded down to nearest whole number) p-value = (rounded to 4 decimals) We cannot reject Ho.
Delta Southwest Delta Southwest Delta Southwest Delta Southwest Delta 113 49 142 66 16 138 80 120 49 36 56 7 131 45 58 33 29 119 113 31 39 125 74 111 57 67 25 82 110 26 141 90 94 26 54 49 113 89 13 31 16 9 143 115 51 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. μ₁ = population mean minutes late for delayed Delta flights μ2 = population mean minutes late for delayed Southwest flights Ho 1-2 Ha 1-2 * 0 0 b. What is the sample mean number of minutes late for delayed flights for each of these two airlines? Sample mean for Delta = Sample mean for Southwest = (rounded to 2 decimals) (rounded to 2 decimals) c. Using a 0.05 level of significance, what is the p-value and what is your conclusion? df (rounded down to nearest whole number) p-value = (rounded to 4 decimals) We cannot reject Ho.
Essentials of Business Analytics (MindTap Course List)
2nd Edition
ISBN:9781305627734
Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Chapter7: Linear Regression
Section: Chapter Questions
Problem 4P: A sociologist was hired by a large city hospital to investigate the relationship between the number...
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