In testing H0: μ = 10 vs Ha: μ 6= 10, we find the test
z-statistic is z(obs) = −2.5
Find the P-value of the test.
Solution:
This is the two tailed test
z = -2.5
P(z < -2.5) = 0.0062
P-value = 2 * 0.0062 = 0.0124
In testing H0: μ = 10 vs Ha: μ 6= 10, we find the test z-statistic...
Compute the value of the test statistic for testing H0: μ ≤ 30 vs. Ha: μ > 30, where the true standard deviation is 2.53. You have 32 observations of data in which the mean is 30 and the standard deviation is 2.58.
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ssume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5; x = 24.8, σ = 7.3, n = 37 (i) Calculate the test statistic z. (Round your answer to two decimal places.) (ii) Calculate the p-value. (Round your answer to four decimal places.) (b) H0: μ = 200, Ha: μ < 200; x = 192.1, σ = 34, n = 32 (i) Calculate the test statistic z. (Round your answer to two decimal places.)...
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