The brokerage also wants to see if the proportion of its clients participating in retirement accounts has changed from 2001. Suppose that in 2001, the proportion of the firm’s clients that had a retirement account was .75. This year, a random sample of 120 clients revealed that 98 had some sort of retirement account. At the 1% level of significance, test to see if the proportion of clients who have a retirement account has changed 2001. (15) What is the p-value?

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A: Men are taken as group 1. Women are taken as group 2.   Given: n1=62x1=12n2=57x2=40α=0.07

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A: Since we only answer up to 3 sub-parts, I'll answer the 1st 3 sub-parts. Please resubmit the…

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A:

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