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Plot four different regression graphs (X v Y): Tomatometer v Audience, Budget v Gross, Budget v Tomatometer, Audience v Gross and find the best-fit line equation and correlation coefficient (r-value) for each one. X represents the independent variable and Y represents the dependent variable.
What fraction of the manufacturer's shafts are likely to be rejected? If the manufacturer improves her quality control, she can reduce the value of σ.
Starting from the model summarized in Table 4, what happens if you add the explana- tory variable State to the model? (Limit your estima- tion to the n = 2,000 cases in the training sample.)
What is a discrete and continuous random variable? What is a probability distribution for a discrete random variable? Please provide examples to illustrate your answer? Please no textbook or internet examples, original examples only.
In a certain city, there are 100,000 persons age 18 to 24. A simple random sample of 500 such persons is drawn, of whom 198 turn out to be currently enrolled in college.
the level of significance is the a. same as the p-value b. maximum allowable probability of type i error c. same as the
some students that attend college students work full or part time. how much did your working college friends each earn
Superior Medical System's 2005 balance sheet showed total common equity of $2,050,000. The company had 100,000 shares of stock outstanding which sold at a price of $57.25 per share.
if you take the within groups sum of squares and divide it by the between groups degrees of freedom you getthe mean
A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic the company is currently producing has a normal distribution with an average of 7.5 minutes and a standard deviation of 1.2 minutes.
Write the form of the joint PDF, fx,y(x,y). - Find the marginal PDFs fx(x) and fy(y). - Find Pr(X>1/2) and Pr(Y
Descriptive statistics for each of the four variables along with a discussion of what the descriptive statistics tell us about the motion picture industry?
The correlation between his test and the BDI was r =.14. Evaluate this correlation. What does this correlation tell us about the relationship between these two instruments?
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