Eleanor was looking to save money and make her home more energy efficient. She heard about LED
1 answer:
You might be interested in
Answer: a. The correlation coefficient of the data is positive.
Step-by-step explanation:
Estimated slope of sample regression line =
Here , confidence interval : (-0.181, 1.529)
Estimated slope of sample regression line =
⇒Correlation coefficient(r) must be positive, So a. is true.
But, d. and e. are wrong(0.674 ≠ 0 or 1.348).
We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.
We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong
So, the correct option : a. The correlation coefficient of the data is positive.
Hello there!
The correct answer is 7
.
Hope This Helps You!
Good Luck :)
The correct answer is 7
Hope This Helps You!
Good Luck :)