The National Collegiate Athletic Association (NCAA) reported that the mean number of hours spent per week on
Question:
a. Using the sample data, construct a 99% confidence interval for the population mean.
b. Does the 99% confidence interval include the value suggested by the NCAA? Interpret this result.
c. Suppose you decided to switch from a 99% to a 95% confidence interval. Without per-forming any calculations, will the interval increase, decrease, or stay the same? Which of the values in the formula will change?
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Related Book For
Statistical Techniques In Business And Economics
ISBN: 356
16th Edition
Authors: Douglas Lind, William Marchal
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