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A simple regression produces the regression equation Y^ = 5X 7.
a. If we add 2 to all the X values in the data (and keep the Y values the same as the original), what will the new regression equation be?
b. If we add 2 to all the Y values in the data (and keep the X values the same as the original), what will the new regression equation be?
c. If we multiply all the X values in the data by 2 (and keep the Y values the same as the original), what will the new regression equation be?
d. If we multiply all the Y values in the data by 2 (and keep the X values the same as the original), what will the new regression equation be?
Solve the problem. A meteorologist in the Upper Peninsula of Michigan predicts an overnight low of -4° Fahrenheit. What would a Canadian meteorologist predict for the same location in Celsius?
The local newspaper, the Corry Press, suggests discrimination in an editorial. What is the likelihood of this occurrence?
How many integers are there between 5 and 14? How Many rational numbers are there between 5 and 14?
(a) Find the distribution of Y. (b) Determine the probability of extinction.
Suppose that among all participants, the mean test score is 70.07 and the standard deviation is 10.27. Use z-scores to interpret a raw score of 80. What is the corresponding z-score? How would you interpret this result? Show your work.
Determine the rejection region for the hypothesis Ho : mean D= 0 if H a : mean D > 0. Use a = 0.01. z>
to examine the effectiveness of its four annual advertising promotions a mail order company has sent a questionnaire to
question within the first six months of the new advertising campaign mccain was able to double its sales goal of a 15
Suppose a 1/2-pack-or-more-of-cigarettes-a-day smoker has a 200% increased risk of a certain type of serious facial skin condition. How do you interpret this?
Suppose you were a consultant who has been engaged by an airline company to estimate the 'fudge' factor for passenger's weights. Describe an experiment you would consider to estimate this 'fudge' factor. Discuss the statistical test you would cons..
in 2010 when she was a high school senior alysha scored 670 on the mathematics part of the sat. the distribution of sat
use the following information to answer the question. in a recent poll of 1200 randomly selected adult office workers
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