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1.) Suppose that 45% of students have taken an online course. A random sample of 200...

1.) Suppose that 45% of students have taken an online course. A random sample of 200 students is taken, of which 100 have taken an online course.

A.) What is the probability of obtaining a sample proportion this high or higher?

B.) There is some thought that the proportion taking online courses is no longer 45%. Based on the random sample, construct a 95% confidence interval for the proportion of students who have taken an online course.

C.) Compute the margin of error for this interval.

D.) Does the interval confirm that the interval online course rate is no longer 45%? __________ Explain in at most 2 sentences.

Math   Statistics-And-Probability   
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