Question

Population Proportion Estimation Considerations Quick Check
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Question
Which of the following is the range of proportions that is within one standard deviation of the sampling proportion mean when the standard deviation is 0.02 and the mean is 0.22?(1 point)
Responses

0.16≤x≤0.28

0 point 1 6 is less than or equal to x is less than or equal to 0 point 2 8

0.24≤x≤0.30

0 point 2 4 is less than or equal to x is less than or equal to 0 point 3 0

0.18≤x≤0.26

0 point 1 8 is less than or equal to x is less than or equal to 0 point 2 6

0.20≤x≤0.24

Answer 1

One standard deviation around the mean is 0.22 ± 0.02 = [0.20, 0.24].
So the correct choice is: 0.20 ≤ x ≤ 0.24.