Assume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5;...

Question

Question

Assume that z is the test statistic.

(a) H0: μ = 22.5, Ha: μ > 22.5; x = 26.7, σ = 7.4, n = 21

(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, σ = 35, n = 20

(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.)

(c) H0: μ = 12.4, Ha: μ ≠ 12.4; x = 10.7, σ = 4.6, n = 38

(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.)

You may need to use the appropriate table in Appendix B to answer this question.

Answer 1

Answer #1

(o 7-A 26 .구 -22-S : 2. 60 - 乙ニ2-60 乙: (92-200 ニー1.02 乙ょー1.01 (left-lailed to 12-4 ←2.28 LG/38 Z2. 28 koa ge P-Value O.22

Answer 2

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