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Question : 11-8. A candidate for political office wants to determine if there is

ID: 3157124 • Letter: Q

Question

Question:

11-8. A candidate for political office wants to determine if there is a difference in his popularity between men and women. To test the claim of this difference, he conducts a survey of voters. The sample contains 250 men and 250 women, of which 44% of the men and 52% of the women favor his candidacy. Do these values indicate a difference in popularity? Use a 0.01 significance level..

You can use StatCrunch to find the z-stat and p-value. What is the z-stat and p-value?

z-stat =

p-value =

Explanation / Answer

P = 0.44*250 + 0.52*250 = 240 / 500 =0.48

Z = ( 0.52-0.44) / ( srqt 0.48*0.52*(1/250 + 1/250) )

Z = 1.79

p value : 0.0367