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8th Edition

Frederick J Gravetter + 1 other

Publisher: Cengage Learning

ISBN: 9781133956570

Chapter 14.6, Problem 1LCC

Textbook Problem

A set of *n* = 18 pairs of scores produces a Pearson correlation of *r =* 0.60 with *SS*_{Y} *=* 100. Find SS _{regression} and *SS* _{residual} and compute the *F-*radio to evaluate the significance of the regression equation of predicting *Y.*

Essentials of Statistics for the Behavioral Sciences

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Ch. 14.1 - For each of the following, indicate whether you...Ch. 14.1 - The data points would be clustered more closely...Ch. 14.1 - If the data points are clustered close to a line...Ch. 14.1 - If a scatter plot shows a set of data points that...Ch. 14.2 - Can SP ever have a value less than zero?Ch. 14.2 - Calculate the sum of products of deviations (SP)...Ch. 14.2 - For the following data: a. Sketch a scatter plot...Ch. 14.3 - A researcher finds a correlation of r = 0.71...Ch. 14.3 - A researcher finds a correlation of r = 0.60...Ch. 14.4 - A researcher obtains a correlation of r = 0.39 for...

Ch. 14.4 - As sample size gets smaller, what happens to the...Ch. 14.4 - Sales figures show a positive relationship between...Ch. 14.5 - Describe what is measured by a Spearman...Ch. 14.5 - If the following scores are converted into ranks,...Ch. 14.5 - Rank the following scores and compute the Spearman...Ch. 14.5 - The following data represent job-related stress...Ch. 14.5 - A researcher would like to know whether there is a...Ch. 14.6 - A local gym charges a 25 monthly membership fee...Ch. 14.6 - For the linear equation, Y = 3X + 7. what happens...Ch. 14.6 - Use the linear equation Y = 2X 7 to determine the...Ch. 14.6 - If the slope constant (b) in a linear equation is...Ch. 14.6 - Sketch a scatter plot for the following datathat...Ch. 14.6 - Describe what sis measured by the standard error...Ch. 14.6 - As the numerical value of a correlation increases,...Ch. 14.6 - A sample of n = 6 pairs of X and Y scores produces...Ch. 14.6 - A set of n = 18 pairs of scores produces a Pearson...Ch. 14 - a. What information is provided by the sign (+ or...Ch. 14 - Calculate SP (the sum of products of deviations)...Ch. 14 - Calculate SP (the sum of products of deviations)...Ch. 14 - For the following scores, X Y 1 3 3 5 2 1 2 3 a....Ch. 14 - For the following scores, X Y 1 7 4 2 1 3 1 6 2 0...Ch. 14 - For the following scores, X Y 1 6 4 1 1 4 1 3 3 1...Ch. 14 - With a small sample, a single point can have a...Ch. 14 - For the following set of scores, X Y 6 4 3 1 5 0 6...Ch. 14 - Judge and Cable (2010) report the results of a...Ch. 14 - The researchers cited in the previous problem also...Ch. 14 - Identifying individuals with a high risk of...Ch. 14 - As we have noted in previous chapters, even a very...Ch. 14 - A researcher measures three variables, X, Y, and...Ch. 14 - Sketch a graph showing the line for the equation Y...Ch. 14 - The regression equation is intended to be the best...Ch. 14 - A set of n = 20 pairs of scores (X and Y values)...Ch. 14 - A set of n = 25 pairs of scores (X and Y values)...Ch. 14 - For the following set of data, a. Find the linear...Ch. 14 - Does the regression equation from Problem 20...Ch. 14 - For the following scores, X Y 3 6 6 1 3 4 3 3 5 1...Ch. 14 - Although you might suspect that dissatisfied...Ch. 14 - Problem 9 examined the relationship between weight...Ch. 14 - There appears to be some evidence suggesting that...Ch. 14 - The regression equation is computed for a set of n...Ch. 14 - a. One set of 20 pairs of scores, X and Y values,...Ch. 14 - a. A researcher computes the regression equation...

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