Mathematics, 13.12.2020 23:30 bm42400
In a sample of 80 Americans, 55% wished that they were rich. In a sample of 90
Europeans, 45% wished that they were rich.
a) At a = 0.01, is there difference in the proportions?
b) Find the 99% confidence interval for the differences of the two proportions
Answers: 2
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The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p โ 2x + 2(20) yes, because p โ 2x + 2(20) yes, because p = 2x + 2(20)
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In a sample of 80 Americans, 55% wished that they were rich. In a sample of 90
Europeans, 45% wishe...
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