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Below are revenue and profit (both in $ billions) for nine large entertainment companies.
Fit the regression, with fitted equation and R2. Entertainment
Revenue and Profit of Nine Entertainment Companies
Company
Revenue
Profit
AMC Entertainment
1.792
-0.020
Clear Channel Communication 8.931
1.146
Liberty Media
2.446
-0.978
Metro-Goldwyn-Mayer
1.883
-0.162
Regal Entertainment Group
2.490
0.185
Time Warner
43.877
2.639
Univision Communications
1.311
0.155
Viacom
26.585
1.417
Walt Disney
27.061
1.267
Fix-It Copiers advertises mean time of 100 minutes for office calls with standard deviation of 25 minutes. What percentages of calls are completed?
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A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
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If person is selected at random and tested, determine the probability of that person having an IQ score between 85 and 115. Make use of EXCEL to help determine the probability.
To test whether the population standard deviation differ significantly using Chi-Square test.
Write the hypothesis statement. What distribution are you using?
The calculated Z test statistic is a positive value that leads to a p-value of .045 for the test. If the significance level (α) is .01, the null hypothesis would be rejected.
Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.
Write the regression equation approximately. Computed the coefficient of determination(r 2 ).
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