1. Math
2. Statistics And Probability
3. q 34 part a using the dataset below calculate the...

# Question: q 34 part a using the dataset below calculate the...

###### Question details

Q. 34

Part A. Using the dataset below, calculate the covariance and correlation coefficient between X and Y. For ease, copy and paste the dataset onto your spreadsheet.

 X Y 21 35 24 27 23 31 30 38 22 36 18 40 20 37 26 28

a.) Covariance = 5.71. Correlation coefficient = -0.32

b.) Covariance = -5. Correlation coefficient = -0.32

c.) Covariance = -5.71. Correlation coefficient = -0.32

d.) None of the above

Part B. Refer to the above dataset. Using the appropriate spreadsheet function, calculate the sample standard deviation of ONLY variable Y.

a.) 4.78
b.) 4.47
c.) 5.71
d.) None of the above

Part C. Refer to the above dataset. Run a regression on the dataset. What is your conclusion?

a.) Reject H0 because R-square is only 10.2%

b.) Do not reject H0 because R-square is only 10.2%

c.) Do not reject H0 because F is 0.68 and p-value = 0.4406

d.) Reject H0 because b = -0.4082 and p-value = 0.4406

Part D. Refer to the above dataset. Give a 95% confidence interval for the slope parameter.

a.) 15.2482; 71.5273

b.) -1.6177; 0.8014

c.) -0.8257; 0.4406

d.) None of the above