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Below are revenue and profit (both in $ billions) for nine large entertainment companies.
Make a scatter plot of profit as a function of revenue. 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
Make a scatter plot of profit as a function of revenue.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.
How many days should be considered if a 95 percent confidence is used and the estimate is to be within one hundred dollars?
It is not unusual for a battery to have life span that is more than 2470 hours as the z-score is within 2 standard deviations of mean.
Calculate mean and SS for sample of difference scores.
Interpret coefficient on log (salesm). If salesm were to be increased by 20%, what would be estimated change in mktgp? Would this effect be substantive?
Plan the scatter diagram
An experiment was conducted to determine the effects of three different pesticides (P1,P2,P3) on the yield of three different varieties of citrus tree (V1,V2,V3).
At the .01 significance level, can we conclude that the 30-yeer mortgage rate for small banks is less than 6 percent? Estimate the p -value.
Find a 95% confidence interval for the difference in the proportion of deaths between the streptokinase and the control group.
At α = 0.01 level of significance, test the hypothesis that these data can be described by a Poisson pdf.
The board of directors of Saner Automatic Door Company consists of 12 members, 3 of whom are women.
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