SOLUTION: Successful managers must have personality characteristics often thought of as feminine as well as those thought as masculine. The Ben-Sex-Role Inventory (BSRI) is a personality tes

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Question 1158485: Successful managers must have personality characteristics often thought of as feminine as well as those thought as masculine. The Ben-Sex-Role Inventory (BSRI) is a personality test that gives separate ratings for female and male stereotypes, both on a scale of 1 to 7. A sample of 144 hotel general managers of three star and four star hotels had mean BSRI masculinity score of 5.91. Assume that the standard deviation masculinity score for all hotel managers is 2.4. What is the margin of error for the sample of hotel managers at 95% confidence?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Not interval data but will treat as such.
margin of error is z(0.975)*sigma./sqrt(n)=1.96*2.4/sqrt(144)=0.392 ANSWER
The 95%CI to two decimal places would be (5.52, 6.40)