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Predicting movie revenue: preliminary analysis. The response variable is a movie's total U.S. revenue (USRevenue). Let's consider as explanatory variables the movie's budget (Budget); opening weekend revenue (Opening); the number of theaters (Theaters) in which the movie was shown during the opening weekend; and the movie's IMDb rating (Opinion), which is on a 1 to 10 scale (10 being best). Although this rating is updated continuously, we'll assume that the current rating is the rating at the end of the first week.
(a) Using numerical and graphical summaries, describe the distribution of each explanatory variable. Are there any unusual observations that should be monitored?
(b) Using numerical and graphical summaries, describe the relationship between each pair of explanatory variables.
How much should a healthy shetland pony weigh? Let X be the age of the ponies in months and y be the average weight of the ponies, in kilograms.
Super Markets, Inc. is considering expanding into the Scottsdale, Arizona, area. Ms. Luann Miller, Director of Planning, must present an analysis of the proposed expansion to the operating committee of the board of directors
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were tested for each of the paints.
Someone suggests classifying a computer as damaged if it fails any of the tests. Discuss the advantages and disadvantages of this test plan.
Yyielding a $20,000 profit, and a 30% chance that the building will sell for $230,000, yielding a $70,000 profit. What is the expected profit? = E( X - ) = ( xi - What is Var(X)?
a local school district claims that the number of school days missed by its teachers due to illness is below the
(b) Show that there is a value of p for which the covariance in (a) is zero. For this value, are the two random variables in (a) independent?
The dictionary definition of shy is "being reserved or having or showing nervousness or timidity in the company of other people." Create three different operational definitions of shy and provide a critique of each one.
Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time (0 decimals)?
What is sampling error? Provide an example. What is non-sampling error? Provide an example. Why is it important to understand these concepts?
an airline has an advertisement that states ...our passengers always receive their bags within 20 minutes after the
Fire Eye (www.fireeye.com) is one of the world's most effective private cybercrime fighters. The company defends corporations and governments against targeted malicious software. Fire Eye's clients include Fortune 500 companies and members of the ..
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