questionnaire is developed to assess women\'s and men\'s attitudes toward using

Question

questionnaire is developed to assess women's and men's attitudes toward using animals in research. One question asks whether animal research is wrong and is answered on a 7-point scale. Assume that in the population, the mean for women is 3, the mean for men is 2, and the standard deviation for both groups is 1.5. Assume the scores are normally distributed. If 12 women and 12 men are selected randomly, what is the probability that the mean of the women will be more than 1.5 points higher than the mean of the men?

Explanation / Answer

Ans:

Standard dveiation for difference in means=sqrt((1.5^2/12)+(1.5^2/12))=0.612

z=((3-2)-1.5)/0.612

z=-0.5/0.612

z=-0.82

P(z>-0.82)=0.7939

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.