Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive
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Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive
Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive 1 and seven cars were tested with additive 2. The following data show the miles per gallon obtained with the two additives. Additive 1 Additive 2 17.3 18.7 18.4 17.8 19.1 21.2 16.7 21.1 18.2 22.1 18.6 18.7 17.5 19.7 Use a = 0.05 and the MWW test to see whether there is a significant difference between gasoline mileage for the two additives. Use Table 1 of Appendix B. What is the mean and standard deviation of the normal distribution that can be used for this statistical test? Mean -1.92 (to 1 decimal) Standard deviation 6.6740 (to 4 decimals) What is the value of the test statistic (to 2 decimals)? Enter negative value as negative number. -1.92 What is the p-value for the hypothesis test (to 4 decimals)?
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