Simple linear regression practice problems
[DOC File]STA 3024 - University of Florida
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As a preliminary analysis, a simple linear regression model was done. The fitted regression equation was: sales = 2259 - 1418 price. The ANOVA F test p-value was .000, and R2= 59.7%. 25. The response variable is: a) quantitative b) y c) sales d) all of the above. 26. Which of the following is the best interpretation of the slope of the line?
[DOC File]Practice Problems, Midterm 1 Solutions
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1. (a) Under the simple linear regression model, . Weight is associated with Miles per Gallon in the City (MPGCity) if . To test whether weight is associated with MPGCity, we test versus. From the JMP output, the p-value is
[DOC File]Simple Regression - University of Florida
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Practice Problems on Correlation & Simple Regression 1. Suppose that, across a sample of stores, the correlation coefficient between beer prices and beer sales is -0.65.
[DOCX File]LINEAR REGRESSION - Wake Forest University
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A simple regression, which implies a single independent variable, can accommodate most any functional relation between the left-hand side [LHS] (i.e., dependent) variable and right-hand side [RHS] (i.e., independent) variable.In general, it is easier to think about the relation between the variables as either linear or non-linear (i.e., concave, convex or some arbitrary polynomial).
[DOC File]STA 6166 – Practice Problems – Exam 3
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A simple linear regression model is fit, relating plant growth over 1 year (y) to amount of fertilizer provided (x). Twenty five plants are selected, 5 each assigned to each of the fertilizer levels (12, 15, 18, 21, 24). ... STA 6166 – Practice Problems – Exam 3 ...
[DOC File]Linear Regression Problems
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Fit linear, quadratic, cubic, exponential, quartic, and power functions to the data. By comparing the values of, determine the function that best fits the data. Superimpose the regression curve on the scatter plot. Use the regression model to predict the credit card volume in 2003 and in 2010. Logarithmic Regression Problems. 1.
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