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A Confidence Interval Was Used to Estimate the Proportion of Business

Question 45

Multiple Choice

A confidence interval was used to estimate the proportion of business statistics students that are females.A random sample of 72 business statistics students generated the following 90% confidence interval: (0.438,0.642) .Using the information above,what total sample size would be necessary if we wanted to estimate the true proportion to within 0.08 using 95% confidence?


A) 105
B) 150
C) 597
D) 420

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