Mathematics, 01.08.2019 05:30, keving4three
Arandom sample of 25 values is drawn from a mound-shaped and symmetrical distribution. the sample mean is 10 and the sample standard deviation is 2. use a level of significance of 0.05 to conduct a two-tailed test of the claim that the population mean is 9.5.
(a) is it appropriate to use a student's t distribution? explain. how many degrees of freedom do we use?
(b) what are the hypotheses?
(c) compute the sample test statistic t.
(d) estimate the p-value for the test.
(e) do we reject or fail to reject h_0?
(f) interpret the results.
Answers: 2
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Arandom sample of 25 values is drawn from a mound-shaped and symmetrical distribution. the sample me...
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