Question

Use a hypothesis test to test the given claim. A test of sobriety involves measuring the subject's motor skills. Twenty randomly selected sober subjects take the test and produce a mean score of 41.0 with a standard deviation of 3.4. At a significance level of 0.01, test the claim that the true mean score for all sober subjects is equal to 39.0. There is not enough information to perform the test. Fail to reject the null hypothesis of μ-39.0 with a P-value of 0.01647. There is not sufficient evidence that the true mean score for sober subjects is different from 39.0 Reject the null hypothesis of μ-39.0 with a P-value of 0.00823. There is strong evidence that the true mean score for sober subjects is not 39.0 OReject the null hypothesis of H 39.0 with a P-value of 0.01647. There is sufficient evidence that the true mean score for sober subjects is different from 39.0 0 Fail to reject the null hypothesis of μ-39.0 with a P-value of 0.02647. There is not sufficient evidence that the true mean score for sober subjects is different from 39.0

Answer 1

mecinX 41. o etandard devi auhion f sample S 3.4 y pa undes Ho test stachstie is --시。 1 3 9 2 0.700263