A children’s clothing company sells hand-smocked dresses for girls. The length of one particular size of dress is designed to be 24 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 24 inches, the machines must be adjusted. The most recent simple random sample of 17 dresses had a mean length of 20.36 inches with a standard deviation of 4.83 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.10 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below.
A children’s clothing company sells hand-smocked dresses for girls. The length of one particular size of dress is designed to be 24 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 24 inches, the machines must be adjusted. The most recent simple random sample of 17 dresses had a mean length of 20.36 inches with a standard deviation of 4.83 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.10 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below.
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 for girls. The length of one particular size of dress is designed to be 24 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 24 inches, the machines must be adjusted. The most recent simple random sample of 17 dresses had a mean length of 20.36 inches with a standard deviation of 4.83 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.10 level of significance.
Step 1 of 3 :
State the null and alternative hypotheses for the test. Fill in the blank below.
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