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if many 90% confidence intervals for a population proportion are calculated approximately what percentage of this...

if many 90% confidence intervals for a population proportion are calculated approximately what percentage of this confidence intervals not contain the true population proportion?
a. 1%
b. 10%
c. 90%
d. 100%

math   Statistics-And-Probability   
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Answer #1

If many 90% confidence intervals for a population proportion are calculated then that means 90% of this confidence intervals contain the true population proportion.

So, 100 - 90 = 10% of this confidence intervals not contain the true population proportion.

Answer : b) 10%

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