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Regression analysis can be used to analyze how a change in one variable impacts the other variable, such as an increase in marketing budget increasing sales. Find a unique area of your life where one variable impacts the other variable (and that are both measurable) and do a regression analysis on it. Be sure to include the coefficient of determination as well as the test of significance. Share your results and make any comments as to whether or not there is a possibility of potential problems (causation or extrapolation) with your results.
given the following demand schedule for newspapers find the optimal order size if papers cost the newsboy .50 and he
twenty-two volunteers at a cold research institute caught a cold after having been exposed to various cold viruses. a
At a large university, a mathematics placement exam is administered to all students. Samples of 36 male and 30 females are randomly selected from this year's student body and the following scores recorded.
question the water sports company soon will be producing and marketing a new model line of motor boats. the production
What is the probability that separates the bottom 25 percent from the rest of the distribution.
A researcher wants to see if urban, suburban and rural communities differ in terms of the support for food banks. The researcher randomly chose 4000 food banks from around the country and interviewed the director of each. Calculate the degrees of ..
Use a 95% CI to estimate the difference between the proportions of men and women managers who are married. Interpret the interval and what is the conclusion in terms of the populations from which the samples were drawn.
a machine cuts steel to length for nails. the mean lenght of a nail is 43 millimeters. there is concern that the
What is the standard error of the mean weight
what is the difference between standard normal distribution and t-distribution?could anyone help me this
The number of runs with respect to the sample median is:
At α = .05 in a left-sided test, find the β risk and power assuming that the true mean is really 380 square feet per gallon. (b) Construct a left-sided power curve, using increments of 5 square feet (400, 395, 390, 385, 380).
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