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Question 1: What is the independent variable?
Question 2: What is the dependent variable?
Question 3: Is the dependent variable discrete or continuous?
Question 4: What scale of measurement (nominal, ordinal, interval or ratio) is used to measure the dependent variable?
Question 5: What research method is being used (experimental or observational), and why?
Question 6: If, instead of measuring the perceived quality of shoes, the researcher decides to measure the distance each individual can jump off of the ground (in centimeters), which of the above answers changes? And what is/are the new answer(s)?
After an unusually dry autumn, a radio announcer is heard to say, "Watch out! We'll pay for these sunny days later on this winter." Explain what he's trying to say, and comment on the validity of his reasoning.
Take me out to the ball game. What is the relationship between the price charged for a hot dog and the price charged for a 16-ounce soda in Major League.
Three consumers go to a Best Buy to shop for high- definition televisions (HDTVs). Let B indicate that one of the consumers buys an HDTV. Let D be that the consumer doesn't buy an HDTV. Assume these events are equally likely. Consider the followin..
What is the probability of obtaining a sample mean greater than M=105, for a random sample of n=9 people? For a random sample of n=36 people?
Let Y, Y2 denote the order statistics of a random sample of size 2 from a distribution which is N(µ, u2), where u2 is known.(a) Show that Pr ( Y1 µ Y2 ) = !and compute the expected value of the random length Y2 - Y, .
A marketing research firm believes that approximately 12.5% of all persons mailed a sweepstakes offer will respond if a preliminary mailing of 10,000 is conducted in a fixed region. What is the probability that 1,000 or fewer will respond?
Use the Wald-Wolfowitz test to determine whether there is evidence that average owner salaries in the two business lines are not equal.
For the men in the table, test whether television violence and abusiveness are associated, using a significance level of 0.05.
What does this data set imply about the possibility of predicting the boiling point of compounds in this series on the basis of the number of carbon atoms? Compute the correlation coefficient between these two variables, even though the number n i..
According to the regression line, how long does a typical dive to a depth of 200 meters last? The dives varied from 40 meters to 300 meters in depth. Plot the regression line from D=40 to D=300.
In the words of the problem, use your rejection region to give a practical conclusion for this test. Make sure to include your choice of a in this conclusion
in a small pond there are 50 fish 10 of which have been tagged. if a fishermans catch consists of 7 fish selected at
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