A lumber company is making boards that are 2902.02902.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 1212 boards is made, and it is found that they have a mean of 2899.42899.4 millimeters with a standard deviation of 8.08.0. Is there evidence at the 0.010.01 level that the boards are too short and unusable? Assume the population distribution is approximately normal. Step 1 of 3: State the null and alternative hypotheses. Step 2: Find the P-value for the hypothesis test. Round your answer to four decimal places. Step 3: Make the decision to reject or fail to reject the null hypothesis.
A lumber company is making boards that are 2902.02902.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 1212 boards is made, and it is found that they have a mean of 2899.42899.4 millimeters with a standard deviation of 8.08.0. Is there evidence at the 0.010.01 level that the boards are too short and unusable? Assume the population distribution is approximately normal. Step 1 of 3: State the null and alternative hypotheses. Step 2: Find the P-value for the hypothesis test. Round your answer to four decimal places. Step 3: Make the decision to reject or fail to reject the null hypothesis.
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 lumber company is making boards that are 2902.02902.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 1212 boards is made, and it is found that they have a mean of 2899.42899.4 millimeters with a standard deviation of 8.08.0. Is there evidence at the 0.010.01 level that the boards are too short and unusable? Assume the population distribution is approximately normal.
Step 1 of 3:
State the null and alternative hypotheses.
Step 2: Find the P-value for the hypothesis test. Round your answer to four decimal places.
Step 3: Make the decision to reject or fail to reject the null hypothesis.
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