A children’s clothing company sells hand-smocked dresses. The length of one particular size of dress is designed to be 39 inches. The company regularly tests the lengths of the garments to ensure quality control, and if the mean length is found to be significantly longer or shorter than 39 inches, the machines must be adjusted. The most recent simple random sample of 18 dresses had a mean length of 34.24 inches with a standard deviation of 10.19 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.01 level of significance. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.s tep 3 of 3: Draw a conclusion and interpret the decision.
A children’s clothing company sells hand-smocked dresses. The length of one particular size of dress is designed to be 39 inches. The company regularly tests the lengths of the garments to ensure quality control, and if the mean length is found to be significantly longer or shorter than 39 inches, the machines must be adjusted. The most recent simple random sample of 18 dresses had a mean length of 34.24 inches with a standard deviation of 10.19 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.01 level of significance. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.s tep 3 of 3: Draw a conclusion and interpret the decision.
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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A children’s clothing company sells hand-smocked dresses. The length of one particular size of dress is designed to be 39 inches. The company regularly tests the lengths of the garments to ensure quality control, and if the mean length is found to be significantly longer or shorter than 39 inches, the machines must be adjusted. The most recent simple random sample of 18 dresses had a mean length of 34.24 inches with a standard deviation of 10.19 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.01 level of significance.
Step 2 of 3:
Compute the value of the test statistic. Round your answer to three decimal places.s
tep 3 of 3:
Draw a conclusion and interpret the decision.
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