The amounts of 6 restaurant bills and the corresponding amounts of the tips are given in the below. Assume that bill amount is the explanatory variable and tip amount the response variable. (a) Find the correlation: r = Bill 70.29 64.30 49.72 32.98 97.34 106.27 Tip 10.00 7.70 5.28 4.50 16.00 16.00 (b) Does there appear to be a significant correlation? A. Yes B. No (c) The regression equation is ŷ (d) If the amount of the bill is $85, the best prediction for the amount of the tip is $ Note: Enter your answer as a number xx.xx (e) According to the regression equation, for every $10 increase in the bill, the tip should (Enter INCREASE or DECREASE) by $
The amounts of 6 restaurant bills and the corresponding amounts of the tips are given in the below. Assume that bill amount is the explanatory variable and tip amount the response variable. (a) Find the correlation: r = Bill 70.29 64.30 49.72 32.98 97.34 106.27 Tip 10.00 7.70 5.28 4.50 16.00 16.00 (b) Does there appear to be a significant correlation? A. Yes B. No (c) The regression equation is ŷ (d) If the amount of the bill is $85, the best prediction for the amount of the tip is $ Note: Enter your answer as a number xx.xx (e) According to the regression equation, for every $10 increase in the bill, the tip should (Enter INCREASE or DECREASE) by $
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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Transcribed Image Text:The amounts of 6 restaurant bills and the corresponding amounts of the tips are given in the below. Assume that bill amount is the
explanatory variable and tip amount the response variable.
(a) Find the correlation: r =
Bill 70.29 64.30 49.72 32.98 97.34 106.27
Tip 10.00 7.70 5.28 4.50 16.00 16.00
(b) Does there appear to be a significant correlation?
A. Yes
B. No
(c) The regression equation is ŷ
(d) If the amount of the bill is $85, the best prediction for the amount of the tip is $
Note: Enter your answer as a number xx.xx
(e) According to the regression equation, for every $10 increase in the bill, the tip should
(Enter INCREASE or DECREASE) by $
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