Question 2 3 pts Friedman and Rosemann (1974) have classified people into two ca

Question

Question 2 3 pts Friedman and Rosemann (1974) have classified people into two categories: Type A personalities and Type B personalities. Type As are hard-driving, competitive, and ambitious. Type Bs are more relaxed, easy-going people. One factor that differentiates these two groups is the chronically high level of frustration experienced by Type As. To demonstrate this phenomenon, separate samples of Type As and Type Bs are obtained, with n-8 in each sample. The individual participants are all given a frustration inventory measuring level of frustration. The average score for the Type As is M-84 with SS-740, and the Type Bs average M-71 with SS-660. Do these data indicate a significant difference between the two groups? Test at the.01 level of significance. Fill in the following information: The wording of this problem suggests we're conducting a (directional, non-directional) test, which means the critical region is in (one, two) tail(s) State the null and alternative hypotheses in words ·Ho: The mean difference in frustration experienced between type A and Type B personalities are (greater than, less than, equal to, not equal to, greater than or equal to, less than or equal to) (numerical value) H1: The mean difference in frustration experienced between type A and Type B personalities are (greater than, less than, equal to, not equal to, greater than or equal to, less than or equal to) (numerical value)

Explanation / Answer

Since there is already the idea that type A's have chronic high level of frustation we might want to test that whether it is significantly greater than the frustation level of B.So the test will be directional and hence a one tail critical region.

The Null hypothesis H0 will be that frustation levels are equal for both the types on an average which means the mean difference in frustation levels between type A and type B will be equal to 0

The alernative hypothesis H1 will be that frustation level of type A are is greater than type B on an average which means the mean difference in frustation levels between type A and type B will be less than 0

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