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Suppose that in a regression analysis, the explanatory variable represents temperature, and the explanatory variable represents whether or not an individual is a male or female. Which statement is the most accurate given this information?
a. The variable should be represented as a dummy variable.b. And . should be written as an interaction term in the regression.c. There is no relationship between the variables and .d. The variable should berepresented as a dummy variable.e. Both and . should be represented by a dummy variable in the regression.
the managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the
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Find probability using normal distribution.Using N (1152, 84), the Normal model for weight of Angus steers, what percent of steers weigh.
For the following scores, find the (A) mean, (B) median, (C) sum of squared deviation (d) variance, and (e) standard deviation:
What is the probability that a poll of a simple random sample of 100 NC voters will result in at least half of those polled favoring the other candidate? Use the normal approximation (no continuity correction) and give your answer to four decimal ..
Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. You have no preconceived idea of what that proportion might be.
a commuter has two vehicles one being a compact car and the other one a minivan. three times out of four he uses the
Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. Determine the best levels for each factor and state your conclusions.
Distributed with mean 4.6 minutes and standard deviation 1.4 minutes. If there are 75 students in class, determine probability the professor requires more than 6 hours to mark all of the midterms?
The the steps of hypothesis testing b) sketch the distribution involved, and c) explain your answer to someone who is familiar with the t test for a single sample but not with the t sest for independent means.
six people suffering from weight problems are put on a year-long exercise regimen and their weights before and
In fact, the sample overrepresented those with high scores and under represented those with low scores. What type of error (Type I or Type II) did the counselors make?
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