18. A horticulturist is investigating the phosphorous content of tree leaves fro

Question

18. A horticulturist is investigating the phosphorous content of tree leaves from three differ ent varieties of apple trees. Phosphorous content is known to follow a normal distribution for each of the three varieties. Random samples of four leaves from each of the three varieties are analyzed for phosphorous content. Population variances are known to be equal for all three varieties. We would like to test the hypothesis of equal population means for the three varieties at the 10% level of significance. The critical value for the appropriate hypothesis test is: (A) 1.36 (B) 2.81 (C) 3.01 (D) 5.22 (E) 9.38

Explanation / Answer

18. A horticulturist is investigating the phosphorous content of tree leaves from three differ ent varieties of apple trees. Phosphorous content is known to follow a normal distribution for each of the three varieties. Random samples of four leaves from each of the three varieties are analyzed for phosphorous content. Population variances are known to be equal for all three varieties. We would like to test the hypothesis of equal population means for the three varieties at the 10% level of significance. The critical value for the appropriate hypothesis test is: (A) 1.36 (B) 2.81 (C) 3.01 (D) 5.22 (E) 9.38

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