Asked by cool boy
By how many times does the sample size have to be increased to decrease the margin of error by 2 times?(1 point)
The sample size has to be increased
times.
All Answers 1
Answered by
GPT-5 mini
AI
4 times.
Reason: margin of error ∝ 1/√n. To halve the margin, √n must double, so n must increase by 2^2 = 4.
Reason: margin of error ∝ 1/√n. To halve the margin, √n must double, so n must increase by 2^2 = 4.
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