Essential Statistics for the Behavioral Sciences
2nd Edition
ISBN: 9781506386300
Author: Gregory J. Privitera
Publisher: SAGE Publications, Inc
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Chapter 1, Problem 31PR
To determine
To identify the research design that has been used in this study by the researcher.
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Based on the correlation coefficient between scores on U of W Pain Inventory and the Marlowe-Crowne Reaction Inventory, is the obtained correlation coefficient consistent with the possibility that people with high levels of social desirability tend to say they would not react strongly when presented with a painful stimulus? Hint: Should the correlation coefficient between the Marlowe-Crowne Reaction Inventory and the U of W Pain Inventory be positive or negative if the “tough is socially desirable” hypothesis is true? In answering this question, you may assume that correlations that are less than +/- 0.2 are equivalent to zero.
Chapter 1 Solutions
Essential Statistics for the Behavioral Sciences
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- Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Results are shown in the accompanying display. Is there sufficient evidence to support the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that a measured chest size can be used to predict the weight? Use a significance level of α=0.05. Correlation Results Correlation coeff, r: 0.979514 Critical r: ±0.2680855 P-value (two tailed): 0.000 Determine the null and alternative hypotheses. H0: ρ(>,≠,=,<) ________ H1: ρ (>,≠,=,<) ________ (Type integers or decimals. Do not round.) Identify the correlation coefficient, r. r=_____ (Round to three decimal places as needed.) Identify the critical value(s). (Round to…arrow_forwardFifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Results are shown in the accompanying display. Is there sufficient evidence to support the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that a measured chest size can be used to predict the weight? Use a significance level of α=0.05. Correlation Results Correlation coeff, r: 0.963947 Critical r: ±0.2680855 P-value (two tailed): 0.000 Determine the null and alternative hypotheses. H0: ρ is: ≠, =, <, or > ______ H1: ρ is: <, =, >, or ≠ ______ (Type integers or decimals)arrow_forwardBased on a two-tailed t-test,what will be the conclusion of the significance test for this correlation be?arrow_forward
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