What are the null and alternative hypotheses? Test the given claim. Assume that a simple random sample is selected from a normally distributed population. Use 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 32.2 ft, which was the standard deviation for the old production method. If it appears that the standard deviation is greater, does the new production method appear to be better or worse than the old method? Should the company take any action? O A. Hoi a = 32.2 ft H,: o< 32.2 ft O B. Hoi a > 32.2 ft H,: a = 32.2 ft Oc. Hoi a = 32.2 ft H;: o > 32.2 ft O E. Hoi a< 32.2 ft H,: o = 32.2 ft OD. H,: a+ 32.2 ft H;: a = 32.2 ft OF. Hgi o = 32.2 ft H,: o+ 32.2 ft - 44, 75, - 24, - 72, - 42, 12, 15, 52, - 8, - 51, - 107, - 107 - Find the test statistic. (Round to two decimal places as needed.) Determine the critical value(s). The critical value(s) is/areD. (Use a comma to separate answers as needed. Round to two decimal places as needed.) Since the test statistic is the critical value(s), Ho. There is method has errors with a standard deviation greater than 32.2 ft. evidence to support the claim that the new production The variation appears to be than in the past, so the new method appears to be because there will be altimeters that have errors. Therefore, the company take immediate action to reduce the variation.

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What are the null and alternative hypotheses?
Test the given claim. Assume that a simple random sample is selected from a
normally distributed population. Use 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 32.2 ft, which was the standard
deviation for the old production method. If it appears that the standard deviation
is greater, does the new production method appear to be better or worse than the
old method? Should the company take any action?
O A. Hoi a = 32.2 ft
H,: o< 32.2 ft
O B. Hoi a > 32.2 ft
H,: a = 32.2 ft
Oc. Hoi a = 32.2 ft
H;: o > 32.2 ft
O E. Hoi a< 32.2 ft
H,: o = 32.2 ft
OD. H,: a+ 32.2 ft
H;: a = 32.2 ft
OF. Hgi o = 32.2 ft
H,: o+ 32.2 ft
- 44, 75, - 24, - 72, - 42, 12, 15, 52, - 8, - 51, - 107, - 107 -
Find the test statistic.
(Round to two decimal places as needed.)
Determine the critical value(s).
The critical value(s) is/areD.
(Use a comma to separate answers as needed. Round to two decimal places as
needed.)
Since the test statistic is
the critical value(s),
Ho. There is
method has errors with a standard deviation greater than 32.2 ft.
evidence to support the claim that the new production
The variation appears to be
than in the past, so the new
method appears to be
because there will be
altimeters that have errors. Therefore, the company
take immediate
action to reduce the variation.
Transcribed Image Text:What are the null and alternative hypotheses? Test the given claim. Assume that a simple random sample is selected from a normally distributed population. Use 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 32.2 ft, which was the standard deviation for the old production method. If it appears that the standard deviation is greater, does the new production method appear to be better or worse than the old method? Should the company take any action? O A. Hoi a = 32.2 ft H,: o< 32.2 ft O B. Hoi a > 32.2 ft H,: a = 32.2 ft Oc. Hoi a = 32.2 ft H;: o > 32.2 ft O E. Hoi a< 32.2 ft H,: o = 32.2 ft OD. H,: a+ 32.2 ft H;: a = 32.2 ft OF. Hgi o = 32.2 ft H,: o+ 32.2 ft - 44, 75, - 24, - 72, - 42, 12, 15, 52, - 8, - 51, - 107, - 107 - Find the test statistic. (Round to two decimal places as needed.) Determine the critical value(s). The critical value(s) is/areD. (Use a comma to separate answers as needed. Round to two decimal places as needed.) Since the test statistic is the critical value(s), Ho. There is method has errors with a standard deviation greater than 32.2 ft. evidence to support the claim that the new production The variation appears to be than in the past, so the new method appears to be because there will be altimeters that have errors. Therefore, the company take immediate action to reduce the variation.
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