Explore BrainMass
Share

Pearson Correlation Assignment

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Please look over what I have done and help me with the rest. My answers are in brackets.

2. What information is provided by the numerical value of the Pearson correlation?

(The sample correlation coefficient, usually denoted r, is a numerical measure of the strength and the direction of the sample linear relationship between two variables. The value of r is always a number from -1to1. If r is positive, then the sample data indicate a positive linear relationship between the two variables; if r is negative, then the sample data indicate a negative linear relationship between the two variables. The closer that r is to the extreme values -1and1, the stronger the linear relationship indicated by the sample data. When r=0, the sample data indicate no linear relationship between the two variables).

6b. For the following scores,

X Y

1 3
3 5
2 1
2 3

b. Compute the Pearson correlation.

14.I identifying individuals with a high risk of Alzheimer's disease usually involve a long series of cognitive tests. However, researchers have developed a 7 minute screen which is a quick and easy way to accomplish the same goal. The question is whether the 7 minute screen is as effective as the complete series of tests. To address this question, Ijuin et al. (2008). Administered both tests to a group of patient and compared the results. The following data and compared the results. The following data represent results similar to those obtained in the study.

Weight (X) Income (Y)

4 156
3 88
5 49
2 73
1 45
3 92
1 53
5 148

Chapter 16

10. For the following scores,

(X) (Y)

3 6
6 1
3 4
3 3
5 1

Reference

Richard Johnson (2006), probability and Statistics for Engineers, 7th edition, Prentice Hall.

© BrainMass Inc. brainmass.com October 25, 2018, 8:04 am ad1c9bdddf
https://brainmass.com/statistics/pearson-product-moment-correlation/pearson-correlation-assignment-524836

Attachments

Solution Preview

2. What information is provided by the numerical value of the Pearson correlation?

The sample correlation coefficient, usually denoted r, is a numerical measure of the strength and the direction of the sample linear relationship between two variables. The value of r is always a number from -1to1. If r is positive, then the sample data indicate a positive linear relationship between the two variables; if r is negative, then the sample data indicate a negative linear relationship between the two variables. The closer that r is to the extreme values -1and1, the stronger the linear relationship indicated by the sample data. When ...

Solution Summary

The Pearson correlation assignments are examined in the solution.

$2.19
See Also This Related BrainMass Solution

SPSS- Correlation Assignments

ASAP!!
Hi Martin!
I have updated this assignment with the correct data set. I also sent you a message requesting that the first assignment be changed with this data set as well. I did not realize I had sent you the incorrect data set. I am so sorry. I have been working too much, and trying to do way too much. Again, I apologize for the inconvience, but I will make it up to you in the end credits (payment). Please help with this, as I need both for today, in time so I can turn in before midnight. Can you please help???

Here is the next set of data I will need your help with in SPSS dealing with the correlation between pretereatment anxiety, and depression scores. Please use the same data that I sent in the last assignment/posting and save it also in an SPSS doc. I will send it again, just in case. Also, please do a short two sentence write up interpreting the results in a quick Word doc. Thanks so much for your help! Please see attached file. Thanks again!

View Full Posting Details