Test the given claim. Assume that a simple random sample is selected from a normally distributed population. Use either the P-value method or the traditional method of testing hypotheses.
Company A uses a new production method to manufacture aircraft altimeters. A simple random sample of new altimeters resulted in errors listed below. Use a 0.05 level of significance to test the claim that the new production method has errors with a standard deviation greater than
What are the null and alternative hypotheses?
A.
B.
C.
D.
E.
F.
Final Answer:
Step 1 :The null hypothesis is usually a statement of no effect or no difference. In this case, the null hypothesis would be that the standard deviation of the new production method is equal to the standard deviation of the old production method, which is
Step 2 :The alternative hypothesis is what we are testing for. In this case, we are testing if the standard deviation of the new production method is greater than
Step 3 :Therefore, the null and alternative hypotheses are:
Step 4 :So, the answer is A.
Step 5 :Final Answer: