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Sampling and proportions — Question 210

Original QCE Vault practice · 1 mark

Q210 · Practice questionTechnology-freeComplex familiar1 mark

QUESTION 210

For a sample proportion pp-hat=0.40=0.40 with n=100n=100, an approximate standard error is
(A)
0.4100\sqrt{\frac{0.4}{100}}
(B)
0.4100\frac{0.4}{100}
(C)
0.610\frac{0.6}{10}
(D)
0.4(0.6)100\sqrt{\frac{0.4(0.6)}{100}}
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