Question: A hypothesis test is conducted at the a = 0.05 significance level to determine whether the mean diameter of all bearings produced by a certain

A hypothesis test is conducted at the a = 0.05 significance level to determine whether the mean diameter of all bearings produced by a certain machine is equal to 5 mm. In a random sample

of 14 bearings from the machine, the mean diameter was found to

be 4.64 mm, with a sample standard deviation of 1.6 mm. The

A hypothesis test is conducted at the a = 0.05 significance level to determine whether the mean diameter of all bearings produced by a certain machine is equal to 5 mm. In a random sample of 14 bearings from the machine, the mean diameter was found to be 4.64 mm, with a sample standard deviation of 1.6 mm. The sample data appeared to be normally distributed. Which of the following values of the test statistic are in the critical region for this hypothesis test? Submit Question E 0/5 pts '0 3 8 2 Q) Details In a random sample of 310 eight-graders in Fiction County, it was found that 48 were hearing imparied. At the a = 0.05 significance level, we want to test the claim that the percentage of eighth-graders in Fiction County who are hearing impaired is greater than the statewide percentage of 11%. Find the P-value for this hypothesis test. Round your answer to four decimal places. Answer: P-value = C] Submit Question E 0/5 pts '0 3 8 2 (D Details In a random sample of 250 eight-graders in Fiction County, it was found that 32 were hearing imparied. At the a = 0.10 significance level, we want to test the claim that the percentage of eighth-graders in Fiction County who are hearing impaired is greater than the statewide percentage of 8%. Which is the correct set of hypotheses? OHozp > 32 and H1:p g 32 01:10:33 2 1.28 and 31:15 78 1.28 OHO:p= 0.08 and [11:19 > 0.08 01:10:83 = 0.08 and 1:11:13 > 0.08 OHM; g 0.13 and 111:1; > 0.13 Submit

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