Question 251411: We believe that 90% of the population of all Business Statistics I students consider statistics to be an
exciting subject. Suppose we randomly and independently selected 33 students from the
population. If the true percentage is really 90%, find the probability of observing 32 or more
students who consider statistics to be an exciting subject
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! We believe that 90% of the population of all Business Statistics I students consider statistics to be an exciting subject. Suppose we randomly and independently selected 33 students from the population. If the true percentage is really 90%, find the probability of observing 32 or more students who consider statistics to be an exciting subject.
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It's a binomial problem with n=33, p= 0.9, 32 <= x <= 33
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P(32<= x <= 33) = 1 - binomcdf(33,0.9,31)
= 1 - 0.8558 = 0.1442
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Cheers,
Stan H.
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