A researcher obtained the following results for a study: n = 45, SSy = 317900, SSx = 34496, = -1.9732. Find the correla...
A researcher obtained the following results for a study: n = 45,
SSy = 317900, SSx = 34496, 
=
-1.9732.
Find the correlation for these results?
Homework Answers
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A researcher obtained the following results for a study: n = 45, SSy = 317900, SSx = 34496, = -1.9732. Find the correla...
A researcher obtains SSX = 20, SSY = 5, and SP = 7 for a set...
A researcher obtains SSX = 20, SSY = 5, and SP = 7 for a set of n = 25 pairs of scores. The Pearson correlation for these scores is r = 7/10 = 0.70. Hint: Look VERY carefully at your formula sheet, especially at the alternative definitional formula for r (wow, I can't believe I actually told you that). True False
An analyst, doing a bivariate study, computes SSX = 5.0, SSY = 20.0 and SSxy=98 What...
An analyst, doing a bivariate study, computes SSX = 5.0, SSY = 20.0 and SSxy=98 What is the correlation (ie, correlation coefficient) in this study? Oa. 0.098 O b. 0.98 Oc 1.00 O d. 0.49 10.20 Oe.
A researcher studied the relationship between the number of siblings (X) and intelligence (Y). The researcher...
A researcher studied the relationship between the number of siblings (X) and intelligence (Y). The researcher reported the following results of calculations: ∑[(X –Mx) (Y –MY)] = 100; SDx = 20; SDY = 20; SSX = 100; SSY = 100. What is the value of the Pearson correlation coefficient?
A set of n=10 pairs of X and Y scores has SSx=14, SSy=84, and SP=28. What...
A set of n=10 pairs of X and Y scores has SSx=14, SSy=84, and SP=28. What is the slope of the regression equation for these scores? Answer:
A researcher studied the relationship between the number of siblings (X) and intelligence (Y). The researcher...
A researcher studied the relationship between the number of siblings (X) and intelligence (Y). The researcher reported the following results of calculations: ∑[(X –Mx) (Y –MY)] = 100; SDx = 20; SDY = 20; SSX = 100; SSY = 100. What is the value of the Pearson correlation coefficient? Question 6 options: 0.25 0 1.00 0.50
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal place...
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
If you were to develop a linear regression equation that uses autonomy at work to predict...
If you were to develop a linear regression equation that uses autonomy at work to predict job satisfaction, what would be the Y-Intercept (a) of the regression equation? Use the slope (b) obtained from the previous question to answer this question. Autonomy Job satisfaction (Y) n 8 8 Mean My=4 My 7 Variability SSX-28 SSY - 156 SP-56 Pearson r.85 -10 1 2 pts Question 43 Correlation' is to 'regression' as significance to non significant 'samples are to populations relationship...
1.) A researcher hypothesizes that people who spend more time surfing the internet will spend less...
1.) A researcher hypothesizes that people who spend more time surfing the internet will spend less time socializing in real life situations. He/she measures the relationship between internet use (X; hours per week) and social interaction (Y; hours per week) in a sample of n 10 students. The following table lists the hypothetical results of this study: Internet Use (X) Social Interaction (Y) (X-Mx) (X- MACY-My) (Y-My) 4 09 a 6 6 a 12 2 3 3 6 5 2...
8. Name the type of nonsampling error AND why you selected this type A researcher, after reviewing the results from the...
8. Name the type of nonsampling error AND why you selected this type A researcher, after reviewing the results from the first ten of his subjects, decides to omit five of the subjects because their results are outside of his expectations for the study. a. b. A researcher cannot find a correlation regarding his/her original research question. When publishing the research, he/she focuses on the side effects experienced by the participants. What is an advantage of utilizing a Pareto graph...
when a researcher has non-significant or inconclusive results in a study, they may also choose not...
when a researcher has non-significant or inconclusive results in a study, they may also choose not to publish this. What are some benefits to publishing inconclusive results of a study?
An analyst, doing a bivariate study, computes SSX = 5.0, SSY = 20.0 and SSxy=98 What is the correlation (ie, correlation coefficient) in this study? Oa. 0.098 O b. 0.98 Oc 1.00 O d. 0.49 10.20 Oe.
A set of n=10 pairs of X and Y scores has SSx=14, SSy=84, and SP=28. What is the slope of the regression equation for these scores? Answer:
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
Question 7 0.5 pts A set of n = 4 pairs of scores (X and Y values) has SSX-5, SSY-625, and SSXY-50. The coefficient of determination (R2) for these data is__.. (Round your answer to two decimal places.)
If you were to develop a linear regression equation that uses autonomy at work to predict job satisfaction, what would be the Y-Intercept (a) of the regression equation? Use the slope (b) obtained from the previous question to answer this question. Autonomy Job satisfaction (Y) n 8 8 Mean My=4 My 7 Variability SSX-28 SSY - 156 SP-56 Pearson r.85 -10 1 2 pts Question 43 Correlation' is to 'regression' as significance to non significant 'samples are to populations relationship...
1.) A researcher hypothesizes that people who spend more time surfing the internet will spend less time socializing in real life situations. He/she measures the relationship between internet use (X; hours per week) and social interaction (Y; hours per week) in a sample of n 10 students. The following table lists the hypothetical results of this study: Internet Use (X) Social Interaction (Y) (X-Mx) (X- MACY-My) (Y-My) 4 09 a 6 6 a 12 2 3 3 6 5 2...
8. Name the type of nonsampling error AND why you selected this type A researcher, after reviewing the results from the first ten of his subjects, decides to omit five of the subjects because their results are outside of his expectations for the study. a. b. A researcher cannot find a correlation regarding his/her original research question. When publishing the research, he/she focuses on the side effects experienced by the participants. What is an advantage of utilizing a Pareto graph...
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