1. Match the correlation coefficient to its variable. Population Correlation (choose below) a. c b. p...
Question 7 1 pts Which of the correlation values represent a perfect linear relationship between x and y? .05 0 1 100 -1 Question 8 1 pts Match the correlation coefficient to its variable. population correlation [Choose ] sample correlation [Choose)
Let r be the correlation coefficient. Denote the explanatory variable by X and the responsible variable by Y . Which statement is correct ? (A) Positive r indicates a perfect linear relationship between X and Y . (B) r is always a number between 0 and 1. (C) r is almost 0 if values of X’s and Y ’s are all positive. (D) The correlation of variables −X and Y is −r. (E) None of the above.
(8 points) Match the following sample correlation coefficients with the explanation of what that correlation coefficient means. Type the correct letter in each box. 1. r = -.15 2. r = 0 3. r = 1 4. r = -97 A. a strong negative relationship between x and y B. no relationship between x andy C. a weak negative relationship between x and y D. a perfect positive relationship between x and y Note: You can earn partial credit on...
Match the linear correlation coefficient to the scatter diagram. r=-0.025 Choose the correct graph below. Oc. OD ОА Q @ Exploratory
Match the linear correlation coefficient to the scatter diagram. The scales on the x- and y-axis are the same for each scatter diagram (a)r= - 1. (b) r= -0.992, (c) r= -0.049 Response (a) Scatter diagram Explanatory (b) Scatter diagram (c) Scatter diagram Response Question Explanatory Response Explanatory Match the linear correlation coefficient to the scatter diagram. r= -0.025 Choose the correct graph below. ОА. ОВ. OC. OD 2 wody ..: E E Explanatory Explanatory Explanatory Explanatory Click to select...
match each of the following of the scatter plots A-D to its correlation coeficient r=0.719 [Choose] B А D с r=-0.064 r = 0.889 [Choose ] r = -0.701 [Choose] . Question 5 Identify which of the following samples is a possible bootstrap sample from the or that consists of the values: 5, 7, 11, 15, 18 Match each of the following scatterplots (A-D) to its correlation coefficient (r). A B D r=0.719 [Choose ] r = -0.064 [Choose ]
Critical Values for the Correlation Coefficient n alpha = .05 alpha = .01 4 0.95 0.99 5 0.878 0.959 6 0.811 0.917 7 0.754 0.875 8 0.707 0.834 9 0.666 0.798 10 0.632 0.765 11 0.602 0.735 12 0.576 0.708 13 0.553 0.684 14 0.532 0.661 15 0.514 0.641 16 0.497 0.623 17 0.482 0.606 18 0.468 0.59 19 0.456 0.575 20 0.444 0.561 25 0.396 0.505 30 0.361 0.463 35 0.335 0.43 40 0.312 0.402 45 0.294 0.378...
What does a correlation coefficient of 0 indicate? Choose the correct answer below. O A. There is no linear relationship between the two quantitative variables. O B. There is a weak relationship between the two quantitative variables. O C. It indicates a calculation error, as the correlation coefficient cannot be 0. O D. There is a strong relationship between the two quantitative variables. O E. It indicates a non-linear relationship between the two quantitative variables.
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r =-0.816, n =5 A. Critical values: = +/- 0.878, no significant linear correlation B. Critical values: =0.950, significant linear correlation C. Critical values: = +/- 0.878, significant linear correlation D. Critical values: = +/-0.950, no significant linear correlation
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.543, n = 25. SHOW WORK Group of answer choices A)Critical values: r = ± 0.396, significant linear correlation B)Critical values: r = ± 0.487, significant linear correlation C)Critical values: r = ± 0.396, no significant linear correlation...