These next two questions refer to the following information: A researcher would

Question

These next two questions refer to the following information: A researcher would like to estimate p, the proportion of U.S. adults who support recognizing civil unions between gay or lesbian couples the proportion of US. adults who support recognizing civil unions between gay or Question 6 of 7 Points: 10 If the researcher would like to be 95% sure that the obtained sample proportion would be within 1.5% of p (the proportion in the entire population of U.S. adults), what sample size should be used? 17,778 ?4445 1,112 0 67 o 45

Explanation / Answer

Solution:-
6) option B. 4445

=> n = (Z/E)^2*p*q = (1.96/0.015)^2*0.5*0.5 = 4268.444(near by)

7) option C. 2.1%

=> 1.96 * sqrt( 0.50 * (1 - 0.50) / 2222) = 0.02078998 = 2.1%

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