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Title 8 Mile Alone in the Dark Aviator Big Fish Bourne Identity Break-Up Charlie's Angels: Full Throttle Collateral Crash Daddy Day Care DaVinci Code...
1. Which variables can be classified as quantitative? Which variables can be classified as qualitative? 2. What is the level of measurement for gross sales (in millions)? 3. Calculate the mean and standard deviation of the Length variable for the 35 movies. (Round to two decimal places.) Interpret your results. 4. Create a chart of Title vs. Length. Paste the chart into the document and discuss what the chart is showing. Are there any outliers? If so, which movie(s)? 5. Create a frequency distribution of the viewer ratings using 5 classes. Your first class should be 0 — 2. 6. Using the frequency distribution created in problem 5, find the probability of the viewer rating being between 6.3 and 8.3. 7. Using the average and standard deviation for the Length variable from problem #3, find the probability that the length of the 35 movies is less than 120 minutes. Assume the distribution is normally distributed. Interpret your result. 8. Using the average and standard deviation for the Length variable from problem #3, find the length of time, x, that corresponds to a z-score of 1.96. Interpret your results. 9. Find a point estimate of the mean, p, for gross sales of the 35 movies. 10. Use the variable Gross to construct a 90% and 95% Confidence Interval. Which is wider? Why?
