Question

In: Statistics and Probability

A) What is a correlation? B) What data structure or research scenario is required for the...

A) What is a correlation?

B) What data structure or research scenario is required for the use of a correlation?

C) do we have groups or not?

D) how many data points per person?

Solutions

Expert Solution


Related Solutions

Your research team has been tasked with finding the correlation of the following scenario: Four research...
Your research team has been tasked with finding the correlation of the following scenario: Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows: Person                         Dexterity                      Anxiety 1                                  1                                  10 2                                  1                                    8 3                                  2                                    4 4                                  4 -2 Describe the process your research team would go through by completing the following: Create a scatter diagram of the scores. Describe in words...
If Data A has a correlation coefficient of r = -0.991, and Data B has a...
If Data A has a correlation coefficient of r = -0.991, and Data B has a correlation coefficient of r = 0.991, which correlation is correct? Select one: a. Data A and Data B have the same strength in linear correlation. b. Data A has a weaker linear correlation than Data B. c. Data A has a stronger linear correlation than Data B. Clear my choice Question 12 Not yet answered Marked out of 1.00 Flag question Question text The...
For the following data​ (a) display the data in a scatter​ plot, (b) calculate the correlation...
For the following data​ (a) display the data in a scatter​ plot, (b) calculate the correlation coefficient​ r, and​ (c) make a conclusion about the type of correlation. The ages​ (in years) of 6 children and the number of words in their vocabulary ​ Age, x 1 2 3 4 5 6 Vocabulary​ size, y 150 1100 1150 1800 2050 2700 A] The correlation coefficient r is
Write a research on the following topic Topic: COMMUNICATION PROBLEM REQUIRED: Structure of research 1. Introduction...
Write a research on the following topic Topic: COMMUNICATION PROBLEM REQUIRED: Structure of research 1. Introduction 2. Why choose this topic 3. Research objective 4. Literature review 5. Conclusion
What is a) the highest possible correlation coefficient? b) The lowest? c) What does a correlation...
What is a) the highest possible correlation coefficient? b) The lowest? c) What does a correlation coefficient of -1.0 mean? d) What does a correlation coefficient of 0 mean? Please Show Steps.
what are the difference between experimental research and correlation research essay on difference between experimental research...
what are the difference between experimental research and correlation research essay on difference between experimental research and correlation research
A research studied the correlation between physical characteristics of sisters and brothers. Here are data on...
A research studied the correlation between physical characteristics of sisters and brothers. Here are data on the heights (in inches) of 11 adult pairs. Brother 71 69 66 67 70 71 70 73 72 65 66 Sister 69 63 65 63 65 62 65 64 66 59 62 a) Find the correlation and the equation of the least squares line for predicting sister’s height from brother’s height. b) Carlos is 72 inches tall. Predict the height of his sister. c)...
Problem Set 1: Pearson Correlation Coefficient Analysis Research Scenario: A clinical psychologist would like to determine...
Problem Set 1: Pearson Correlation Coefficient Analysis Research Scenario: A clinical psychologist would like to determine whether there is a relationship between observer ratings of children’s externalizing behaviors and scores on an established diagnostic interview assessing externalizing disorders (like ADHD, CD, etc.). He administers the diagnostic interview to 25 children and records these scores. He then trains an observer to independently rate carefully-defined externalizing behaviors for each of the 25 children. These scores are totaled for an overall “externalizing behavior...
You are shown the following data. If the correlation coefficient between the combined portfolio of A+B...
You are shown the following data. If the correlation coefficient between the combined portfolio of A+B and C is 0.2, what would happen to the overall volatility of the new portfolio if we invested 50% in A+B and the remaining 50% in C? You could potentially avoid computations. Stocks Volatility % Portfolio invested Average Return A and B 27 50 15 C 32 50 18 Volatility will lie somewhere between 32% and 40%. Volatility will lie somewhere between 27% and...
what is the significance of covariance and oefficient of correlation in understanding the data
what is the significance of covariance and oefficient of correlation in understanding the data
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT