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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Basic Computation: Find Test Statistic, Corresponding P-value, and Conclude Test A random sample of size 20 from a normal distribution with σ = 4 produced a sample mean of 8.
(a) Check Requirements Is theÂ
distribution normal? Explain.
(b) Compute the sample test statistic z under the null hypothesis H0: μ = 7.
(c) For H1: μ ≠7, estimate the P-value of the test statistic.
(d) For a level of significance of 0.05 and the hypotheses of parts (b) and (c), do you reject or fail to reject the null hypothesis? Explain.
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