2. Answer the questions using complete sentences. a. An economist noted the correlation between consumer confidence and monthly personal savings was negative. As consumer confidence increases, would monthly personal savings be expected to increase, decrease, or remain constant? b. A study found a correlation between higher education and lower death rates. Does this mean that one can live longer by going to college? Why or why not? a. Choose the correct answer below. O A. Monthly personal savings would be expected decrease, because a negative correlation means that the two variables are not associated. O B. Monthly personal savings would be expected to increase, because a negative correlation means that as one variable increases, the other variable tends to increase. Monthly personal savings would be expected to remain constant, because a negative correlation means that the two variables are not associated. O C. O D. Monthly personal savings would be expected to decrease, because a negative correlation means that as one variable increases, the other variable tends decrease. b. Choose the correct answer below. OA. No, because the direction of the causal relationship is incorrect. One can go to college by living longer. OB. No, because there is not enough information about the strength of the correlation. O C. No, because an association between two variables is not sufficient evidence by itself to conclude that a cause-and-effect relationship exists between the variables. O D. Yes, because an association between two variables is sufficient evidence to conclude that a cause-and-effect relationship exists between the variables.
2. Answer the questions using complete sentences. a. An economist noted the correlation between consumer confidence and monthly personal savings was negative. As consumer confidence increases, would monthly personal savings be expected to increase, decrease, or remain constant? b. A study found a correlation between higher education and lower death rates. Does this mean that one can live longer by going to college? Why or why not? a. Choose the correct answer below. O A. Monthly personal savings would be expected decrease, because a negative correlation means that the two variables are not associated. O B. Monthly personal savings would be expected to increase, because a negative correlation means that as one variable increases, the other variable tends to increase. Monthly personal savings would be expected to remain constant, because a negative correlation means that the two variables are not associated. O C. O D. Monthly personal savings would be expected to decrease, because a negative correlation means that as one variable increases, the other variable tends decrease. b. Choose the correct answer below. OA. No, because the direction of the causal relationship is incorrect. One can go to college by living longer. OB. No, because there is not enough information about the strength of the correlation. O C. No, because an association between two variables is not sufficient evidence by itself to conclude that a cause-and-effect relationship exists between the variables. O D. Yes, because an association between two variables is sufficient evidence to conclude that a cause-and-effect relationship exists between the variables.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Hello I need help with part B thank you.
Transcribed Image Text:2. Answer the questions using complete sentences.
a. An economist noted the correlation between consumer confidence and monthly personal savings was negative. As consumer confidence increases, would monthly personal savings be expected to increase, decrease, or remain constant?
b. A study found a correlation between higher education and lower death rates. Does this mean that one can live longer by going to college? Why or why not?
a. Choose the correct answer below.
A. Monthly personal savings would be expected to decrease, because a negative correlation means that the two variables are not associated.
B. Monthly personal savings would be expected to increase, because a negative correlation means that as one variable increases, the other variable tends to increase.
C. Monthly personal savings would be expected to remain constant, because a negative correlation means that the two variables are not associated.
D. Monthly personal savings would be expected to decrease, because a negative correlation means that as one variable increases, the other variable tends to decrease.
b. Choose the correct answer below.
A. No, because the direction of the causal relationship is incorrect. One can go to college by living longer.
B. No, because there is not enough information about the strength of the correlation.
C. No, because an association between two variables is not sufficient evidence by itself to conclude that a cause-and-effect relationship exists between the variables.
D. Yes, because an association between two variables is sufficient evidence to conclude that a cause-and-effect relationship exists between the variables.
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