Below gives a data set for movie budgets, and domestic and worldwide box office gross (all in millions) for several major movies over time. Test the claim, at the � = 0.01 level, that the domestic box office gross has a wider variation than the worldwide box office gross. Movie Data Sheet, h̶t̶t̶p̶s̶:̶/̶/̶w̶w̶w̶.̶s̶t̶a̶t̶c̶r̶u̶n̶c̶h̶.̶c̶o̶m̶/̶a̶p̶p̶/̶i̶n̶d̶e̶x̶.̶p̶h̶p̶?̶d̶a̶t̶a̶i̶d̶=̶2̶1̶8̶8̶6̶8̶4̶ (See below table instead)
a. Note that some of the values for gross are zero. What does this mean and does that effect how you should perform the test?
b. Perform the hypothesis test.
Column | n | Mean | Variance | Std. dev. | Std. err. | Median | Range | Min | Max | Q1 | Q3 |
---|---|---|---|---|---|---|---|---|---|---|---|
Domestic Gross($M) | 5222 | 43.496456 | 4616.5913 | 67.945502 | 0.9402477 | 19.188847 | 936.66223 | 0 | 936.66223 | 2.694071 | 54.927174 |
Worldwide Gross($M) | 5222 | 94.434584 | 30132.598 | 173.58744 | 2.4021485 | 31.16133 | 2783.919 | 0 | 2783.919 | 6.173485 | 102.22663 |
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