Question

Two variables, A and B, are correlated with Pearson’s r and the obtained correlation is -0.23....

Two variables, A and B, are correlated with Pearson’s r and the obtained correlation is -0.23. Both variables are then standardized to Z scores and the variables, now in Z scores, are correlated again. Will the correlation between the Z score format of A and B differ from the original correlation of -0.23? Explain how it may or may not differ and why?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

No, the correlation between the Z score format of A and B does not differ from the original correlation of -0.23,

Because,

Since the formula for calculating the correlation coefficient standardizes the variables, changes in scale or units of measurement will not affect its value.

Also, There is nothing in standardization that does change the direction of the variables.

Hi Dear,
I have given my 100% to solve your problem.
So, please help me out by just thumbs up.
Thank you, so much.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A) Two variables have a high covariance. This means the two variables have a strong relationship....
A) Two variables have a high covariance. This means the two variables have a strong relationship. T/F B) For a variable x, the sample mean is 8 and the sample standard deviation is 2. One of the observations is 15. Is this observation an outlier? Group of answer choices Yes, the z-score is greater than 3 No, the z-score is between -3 and 3 Yes, the z-score is between -3 and 3 No, the z-score is less than -3 C)...
From the data on 10 students it was found that the sample linear correlation coefficient (r)...
From the data on 10 students it was found that the sample linear correlation coefficient (r) between their Math scores and English scores was 0.75. a) Overall if the Math Score increases, does the English score increase or decrease? b)(b) At a=0.10, what is the critical value of the correlation coefficient (r a/2 (c) From the result of part (b), do you conclude that there is a significant linear correlation between Math and English scores in general? (Answer YES or...
You wish to determine if there is a linear correlation between the two variables at a...
You wish to determine if there is a linear correlation between the two variables at a significance level of α=0.10. You have the following bivariate data set. x y 41.4 82.8 48.4 97.1 49.9 89.8 47 92.8 20.5 63.7 40.5 74.3 33 70.2 25.9 64.9 29.1 66.1 28.7 80.2 9.7 41.8 23.2 50.3 13.4 49 -5.2 25.4 23.8 56.2 22.5 53.3 30.9 67.4 7 39.6 18.7 46.4 10.5 25.8 What is the correlation coefficient for this data set? r =...
    37. A correlation coefficient of r = -0.98 between two quantitative variables A and B...
    37. A correlation coefficient of r = -0.98 between two quantitative variables A and B indicates that             A. As A increases, B tends to increase.             B. Changes in A cause changes in B. C. As A increases, B tends to decrease.             D. There is a very weak association between A and B, and change in A will not affect B. Please show work using excel functions!
Suppose we have the correlation coefficient for the relationship between two variables, A and B. Determine...
Suppose we have the correlation coefficient for the relationship between two variables, A and B. Determine whether each of the following statement is true or false. (a) The variables A and B are categorical. (b) The correlation coefficient tells us whether A or B is the explanatory variable. (c) If the correlation coefficient is positive, then lower values of variable A tend to correspond to lower values of variable B. (d) If the correlation between A and B is r...
Why is it advisable to generate a scatterplot before computing a correlation coefficient between two variables?...
Why is it advisable to generate a scatterplot before computing a correlation coefficient between two variables? Describe how a scatterplot might differ when viewing correlations that represent positive, negative, and no relationship between predictor and criterion variables. Is it possible to have a relation between variables that systematic (i.e., reliable and predictable) yet not linear?
A sample of n = 16 people is obtained, for each subject two variables are measured:...
A sample of n = 16 people is obtained, for each subject two variables are measured: hours slept in a typical night and clinical anxiety scores. the sample average anxiety score is 15 with a standard deviation of 3 the sample average hours slept is 7.5 with a standard deviation of 2 The correlation between anxiety and hours slept is -0.7 Bonus fact: The sums of squared deivations (SS) for sleep = 60. The SS for anxiety = 135 a....
correlation measures the degree to which two variables are related to one another. Here are the...
correlation measures the degree to which two variables are related to one another. Here are the definitions of the three possibilities: Positive correlations: In this type of correlation, both variables increase or decrease at the same time. A correlation coefficient close to +1.00 indicates a strong positive correlation. Negative correlations: This type of correlation indicates that as the amount of one variable increases, the other decreases (and vice versa). A correlation coefficient close to -1.00 indicates a strong negative correlation....
You wish to determine if there is a positive linear correlation between the two variables at...
You wish to determine if there is a positive linear correlation between the two variables at a significance level of α=0.01α=0.01. You have the following bivariate data set. x y 54.5 82.1 45.8 20.9 46.4 22.7 44.8 -5.5 38.8 -5.4 35.4 83.5 44.3 96.3 25 -45.1 47.8 29.8 48.8 6 49.9 40.6 50.2 62.7 42.1 20.4 32.3 -40.2 45.1 30.5 49.3 3.4 29.4 27.7 44 2.3 39.2 18.2 37.5 1 44.1 27.1 50.6 -41.3 42.9 90.5 39.2 4.5 40.2 -60.7...
A hypothesis test using a Pearson’s correlation coefficient is an example of what? A nonparametric statistic...
A hypothesis test using a Pearson’s correlation coefficient is an example of what? A nonparametric statistic A descriptive statistic An inferential statistic A power statistic 1 points    QUESTION 48 What would the scatter plot show for data that produce a Pearson correlation of r = +0.88? Points clustered close to a line that slopes down to the right Points clustered close to a line that slopes up to the right Points widely scattered around a line that slopes up...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT