Statistics for the Behavioral Sciences
3rd Edition
ISBN: 9781506386256
Author: Gregory J. Privitera
Publisher: SAGE Publications, Inc
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Chapter 15.4, Problem 2.3LC
1.
To determine
Find the value of coefficient of determination.
2.
To determine
Find the value of coefficient of determination.
3.
To determine
Find the value of coefficient of determination.
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The Pearson correlation coefficient between two variables (education and income) is .354. Answer the following questions:
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The Pearson correlation coefficient between two variables (education and income) is .354. Answer the following questions:
What type of correlation coefficient exist between the two variables?
The Pearson correlation coefficient between two variables (education and income) is .354. Answer the following questions:
What type of correlation coefficient exist between the two variables?
A researcher wants to examine the relationship between height and weight in a sample of 100 individuals. After calculating Pearson's r correlation coefficient, the result was -0.63. What can be concluded about the relationship between height and weight based on this value of Pearson's r?
Chapter 15 Solutions
Statistics for the Behavioral Sciences
Ch. 15.2 - Prob. 1.1LCCh. 15.2 - Prob. 1.2LCCh. 15.2 - Prob. 1.3LCCh. 15.2 - Prob. 1.4LCCh. 15.2 - Prob. 1.5LCCh. 15.4 - Prob. 2.1LCCh. 15.4 - Prob. 2.2LCCh. 15.4 - Prob. 2.3LCCh. 15.4 - Prob. 2.4LCCh. 15.6 - Prob. 3.1LC
Ch. 15.6 - Prob. 3.2LCCh. 15.6 - Prob. 3.3LCCh. 15.6 - Prob. 3.4LCCh. 15.8 - Prob. 4.1LCCh. 15.8 - Prob. 4.2LCCh. 15.8 - Prob. 4.3LCCh. 15.10 - Prob. 5.1LCCh. 15.10 - Prob. 5.2LCCh. 15.10 - Prob. 5.3LCCh. 15.12 - Prob. 6.1LCCh. 15.12 - Prob. 6.2LCCh. 15 - Prob. 1FPCh. 15 - Prob. 2FPCh. 15 - Prob. 3FPCh. 15 - Prob. 4FPCh. 15 - Prob. 5FPCh. 15 - Prob. 6FPCh. 15 - Prob. 7FPCh. 15 - Prob. 8FPCh. 15 - Prob. 9FPCh. 15 - Prob. 10FPCh. 15 - Prob. 11CAPCh. 15 - Prob. 12CAPCh. 15 - Prob. 13CAPCh. 15 - Prob. 14CAPCh. 15 - Prob. 15CAPCh. 15 - Prob. 16CAPCh. 15 - Prob. 17CAPCh. 15 - Prob. 18CAPCh. 15 - Prob. 19CAPCh. 15 - Prob. 20CAPCh. 15 - Prob. 21CAPCh. 15 - Prob. 22CAPCh. 15 - Prob. 23CAPCh. 15 - Prob. 24CAPCh. 15 - Prob. 25CAPCh. 15 - Prob. 26CAPCh. 15 - Prob. 27CAPCh. 15 - Prob. 28CAPCh. 15 - Prob. 29CAPCh. 15 - Prob. 30CAPCh. 15 - Prob. 31CAPCh. 15 - Prob. 32PRCh. 15 - Prob. 33PRCh. 15 - Prob. 34PRCh. 15 - Prob. 35PRCh. 15 - Prob. 36PR
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- Describe the relationship between x and y in a positive correlation and in a negative correlation. In the calculations for the correlation coefficient, what does the sum of products of deviations measure and how is this number used in the calculation of r?arrow_forwardAssume there is a perfect positive correlation between a hockey teams shooting percentage X and number of games won Y. The correlation coefficient equals ___arrow_forwardA researcher calculates a correlation coefficient of -.38 for a sample of youths age 5 through 18 for the relationship between “age of the individual” and “number of crimes committed in the last 30 days.” The researcher then collects a sample of adults who are between the ages of 18 and 35 and calculates the correlation coefficient on the same two variables and concludes that the correlation coefficient is .42. Using these pieces of information, draw the relationship below.arrow_forward
- For these data, find the SSx, SSy, SP, and Pearson correlation coefficient, r.arrow_forward9. Which correlation coefficient fits best. The points are clustered closely around a line with negative slope. * O r=-0.93 O r= 0.93 O r= 0.46 O r= -0.78arrow_forwardA random sample of middle class households was taken in a certain state. The income (explanatory variable) of each and the amount spent by each on entertainment (response variable) was recorded. The correlation coefficient was r = 0.005. On the average, does the entertainment amount increase, decrease or stay the same as the income increases? a. Stays the same b. Increases c. Decreasesarrow_forward
- Choose the correct answerarrow_forwardOne of the following number doesn't denote to negative correlation coefficient Select one: a.- 0.3 b. - 0.08 C. - 1.1 d. - 0.8arrow_forwardThe table for part (a) shows distances between selected cities and the cost of a business class train ticket for travel between these cities. a. calculate the correlation coefficient for the data shown in the table by using a computer or statistical calculator. r= arrow_forward
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