z14. Basic Computation: Find the Test Statistic, Corresponding P-value, and Conclude Test A random sample of size 16 from a normal distribution with 1 1so1 A o = 3 produced a sample mean of 4.5. (a) Check Requirements Is the x distribution normal? Explain. (b) Compute the sample test statistic z under the null hypothesis H: u = 6.3. (c) For H,: u< 6.3, estimate the P-value of the test statistic. |(d) For a level of significance of 0.01 and the hypotheses of parts (b) and (c), do you reject or fail to reject the null hypothesis? Explain. %3D

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