Question 1195442: Use the given values of n = 202, p =0.75 to find the minimum value that is not significantly low, μ - 2σ, and the maximum value that is not significantly high, μ + 2σ. Round your answer to the nearest hundredth unless otherwise noted.
119.19, 163.8
139.19, 163.8
119.19, 136.8
139.19, 136.8
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! Binomial approximation problem, but it has non-integer boundaries, which is inconsistent. Be that as it may
mean is np=0.75*202=151.50.
Since the limits are symmetric around 151.50, the answer has to be b.
If you want to do the whole thing, np(1-p) is the variance 37.875, and sd is sqrt(V)=6.15
The interval has to be 12.30 on each side or 24.30 wide. This again is b.
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