N1987, the general social survey asked, "have you ever been active in a veteran's group? " for this question, 52 people said that they definitely did out of 98 randomly selected people. what is the 95% confidence interval for the proportion of all americans who have been active in a veteran's organization? a. (0.432, 0.629)b. (0.525, 0.535)c. (0.0448, 0.614)d. assumptions are not met. can not make confidence interval.

A. (0.432, 0.629)

Step-by-step explanation:

Let be the sample proportion.

As peer given, we have

n= 98

Critical value for 95% confidence interval :

Formula for confidence interval :-

i.e.

Hence, the correct  95% confidence interval : A. (0.432, 0.629)

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column