Consider the dataset refering to screw lengths. (Is it possible to ask a question that has parts a and b to it if not I will ask separately thank you) a) Use a 0.05 significance level to test the claim that the screws have a mean length equal to 3/4 in. (or 0.75 in.), as indicated on the package labels. Do the screw lengths appear to be consistent with the package label? (Assume that the standard deviation of the population is unknown). Find the p-value. b) Use a 0.05 significance level to test the claim that the standard deviation is greater than 0.01. Write down the hypothesis, the sample mean and standard deviation, the test statistic, the critical values, and the conclussion. Dataset: Length of screws 0.757 0.723 0.754 0.737 0.757 0.741 0.722 0.741 0.743 0.742 0.740 0.758 0.724 0.739 0.736 0.735 0.760 0.750 0.759 0.754 0.744 0.758 0.765 0.756 0.738 0.742 0.758 0.757 0.724 0.757 0.744 0.738 0.763 0.756 0.760 0.768 0.761 0.742 0.734 0.754 0.758 0.735 0.740 0.743 0.737 0.737 0.725 0.761 0.758 0.756
Consider the dataset refering to screw lengths. (Is it possible to ask a question that has parts a and b to it if not I will ask separately thank you) a) Use a 0.05 significance level to test the claim that the screws have a mean length equal to 3/4 in. (or 0.75 in.), as indicated on the package labels. Do the screw lengths appear to be consistent with the package label? (Assume that the standard deviation of the population is unknown). Find the p-value. b) Use a 0.05 significance level to test the claim that the standard deviation is greater than 0.01. Write down the hypothesis, the sample mean and standard deviation, the test statistic, the critical values, and the conclussion. Dataset: Length of screws 0.757 0.723 0.754 0.737 0.757 0.741 0.722 0.741 0.743 0.742 0.740 0.758 0.724 0.739 0.736 0.735 0.760 0.750 0.759 0.754 0.744 0.758 0.765 0.756 0.738 0.742 0.758 0.757 0.724 0.757 0.744 0.738 0.763 0.756 0.760 0.768 0.761 0.742 0.734 0.754 0.758 0.735 0.740 0.743 0.737 0.737 0.725 0.761 0.758 0.756
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Consider the dataset refering to screw lengths. (Is it possible to ask a question that has parts a and b to it if not I will ask separately thank you)
a) Use a 0.05 significance level to test the claim that the screws have a
b) Use a 0.05 significance level to test the claim that the standard deviation is greater than 0.01.
Write down the hypothesis, the sample mean and standard deviation, the test statistic, the critical values, and the conclussion.
Dataset:
Length of screws |
0.757 |
0.723 |
0.754 |
0.737 |
0.757 |
0.741 |
0.722 |
0.741 |
0.743 |
0.742 |
0.740 |
0.758 |
0.724 |
0.739 |
0.736 |
0.735 |
0.760 |
0.750 |
0.759 |
0.754 |
0.744 |
0.758 |
0.765 |
0.756 |
0.738 |
0.742 |
0.758 |
0.757 |
0.724 |
0.757 |
0.744 |
0.738 |
0.763 |
0.756 |
0.760 |
0.768 |
0.761 |
0.742 |
0.734 |
0.754 |
0.758 |
0.735 |
0.740 |
0.743 |
0.737 |
0.737 |
0.725 |
0.761 |
0.758 |
0.756 |
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