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High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The the maximum horsepower for the engine to be 810 HP. Sixteen engines are randomly selected for horsepower testing. The maximum HP of 890 with a standard deviation of 85 HP. Use the confidence interval approach to determine whether the average maximum HP for the experimental engine is significantly different from the maximum horsepower calculated by th significance level of a = 0.01. Assume the population of the maximum horsepower of engines is normally distributed. Step 2 of 2: Draw a conclusion and interpret the decision. Answer Because the hypothesized value falls in the interval, we fail to reject the null hypothesis. There is not sufficient evidence at level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we reject the null hypothesis. There is sufficient evidence at the that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we fail to reject the null hypothesis. There is not sufficient evide 0.01 significance level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value falls in the interval, we reject the null hypothesis. There is sufficient evidence at the 0.01 sig average maximum HP is different from the maximum HP calculated by the engineers.

High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The the maximum horsepower for the engine to be 810 HP. Sixteen engines are randomly selected for horsepower testing. The maximum HP of 890 with a standard deviation of 85 HP. Use the confidence interval approach to determine whether the average maximum HP for the experimental engine is significantly different from the maximum horsepower calculated by th significance level of a = 0.01. Assume the population of the maximum horsepower of engines is normally distributed. Step 2 of 2: Draw a conclusion and interpret the decision. Answer Because the hypothesized value falls in the interval, we fail to reject the null hypothesis. There is not sufficient evidence at level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we reject the null hypothesis. There is sufficient evidence at the that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we fail to reject the null hypothesis. There is not sufficient evide 0.01 significance level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value falls in the interval, we reject the null hypothesis. There is sufficient evidence at the 0.01 sig average maximum HP is different from the maximum HP calculated by the engineers.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The the maximum horsepower for the engine to be 810 HP. Sixteen engines are randomly selected for horsepower testing. The maximum HP of 890 with a standard deviation of 85 HP. Use the confidence interval approach to determine whether the d average maximum HP for the experimental engine is significantly different from the maximum horsepower calculated by the significance level of a = 0.01. Assume the population of the maximum horsepower of engines is normally distributed. Step 2 of 2: Draw a conclusion and interpret the decision. Answer E Because the hypothesized value falls in the interval, we fail to reject the null hypothesis. There is not sufficient evidence at th level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we reject the null hypothesis. There is sufficient evidence at the that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we fail to reject the null hypothesis. There is not sufficient evider 0.01 significance level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value falls in the interval, we reject the null hypothesis. There is sufficient evidence at the 0.01 sign average maximum HP is different from the maximum HP calculated by the engineers.
Transcribed Image Text:High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The the maximum horsepower for the engine to be 810 HP. Sixteen engines are randomly selected for horsepower testing. The maximum HP of 890 with a standard deviation of 85 HP. Use the confidence interval approach to determine whether the d average maximum HP for the experimental engine is significantly different from the maximum horsepower calculated by the significance level of a = 0.01. Assume the population of the maximum horsepower of engines is normally distributed. Step 2 of 2: Draw a conclusion and interpret the decision. Answer E Because the hypothesized value falls in the interval, we fail to reject the null hypothesis. There is not sufficient evidence at th level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we reject the null hypothesis. There is sufficient evidence at the that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value does not fall in the interval, we fail to reject the null hypothesis. There is not sufficient evider 0.01 significance level that the average maximum HP is different from the maximum HP calculated by the engineers. Because the hypothesized value falls in the interval, we reject the null hypothesis. There is sufficient evidence at the 0.01 sign average maximum HP is different from the maximum HP calculated by the engineers.
A drug which is used for treating cancer, has potentially dangerous side effects if it is taken in doses which are larger than the required dosage for the treatment. The tablet should contain 47.86 mg and the variance should be 0.02. 15 tablets are randomly selected and the amount of drug in each tablet is measured. The sample has a mean of 47,855 mg and a variance of 0.0129 mg. Does the data suggest at a = 0.01 that the tablets vary by less than the desired amount? Step 4 of 5: Make the decision. Answer Reject Null Hypothesis O Fail to Reject Null Hypothesis Keypad Keyboard Shortcu Tables
Transcribed Image Text:A drug which is used for treating cancer, has potentially dangerous side effects if it is taken in doses which are larger than the required dosage for the treatment. The tablet should contain 47.86 mg and the variance should be 0.02. 15 tablets are randomly selected and the amount of drug in each tablet is measured. The sample has a mean of 47,855 mg and a variance of 0.0129 mg. Does the data suggest at a = 0.01 that the tablets vary by less than the desired amount? Step 4 of 5: Make the decision. Answer Reject Null Hypothesis O Fail to Reject Null Hypothesis Keypad Keyboard Shortcu Tables
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