For the following exercises where applicable: a. State the hypotheses and identify the claim. b. Find the
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For the following exercises where applicable:
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified. Assume all variables are normally distributed.
A manufacturer claims that the standard deviation of the strength of wrapping cord is 9 pounds. A random sample of 10 wrapping cords produced a standard deviation of 11 pounds. At α = 0.05, test the claim. Use the P-value method.
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Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9780077665807
9th Edition
Authors: Allan G. Bluman
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