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WITCHER [35]
2 years ago
10

A lumber company is making boards that are 2578.0 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 20 boards is made, and it is found that they have a mean of 2580.2 millimeters with a variance of 64.00. Is there evidence at the 0.1 level that the boards are either too long or too short?
1. State the hypotheses.
2. Find the value of the t test statistic.
3. Specify if the test is one-tailed or two-tailed.
4. Determine the decision rule.
5. Determine the conclusion.
A) Reject Null Hypothesis
B) Fail to Reject Null Hypothesis
Mathematics
1 answer:
Tju [1.3M]2 years ago
6 0

Answer:

-0.750

Step-by-step explanation:

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<h3>Answer:</h3>

\frac{4}{3}

<h3>Hope it helps...</h3>

ray4918 here to help

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