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MATLAB: An Introduction with Applications
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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Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.05. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) Tip (dollars) 33.73 47.88 82.31 93.82 64.86 105.77 a 4.71 8.34 8.33 9.38 12.10 14.76 ...... Construct a scatterplot. Choose the correct graph below. O A. OB. OC. OD. 25- 25 25- 25- 120 Bill Amount (S) 30 Bill Amount (S) 0- 30 Bill Amount (S) 30 120 30 120 120 Bill Amount (S) Tip Amount ($) Tip Amount ($) Tip Amount ($) Tip Amount ($)
Transcribed Image Text:Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.05. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) Tip (dollars) 33.73 47.88 82.31 93.82 64.86 105.77 a 4.71 8.34 8.33 9.38 12.10 14.76 ...... Construct a scatterplot. Choose the correct graph below. O A. OB. OC. OD. 25- 25 25- 25- 120 Bill Amount (S) 30 Bill Amount (S) 0- 30 Bill Amount (S) 30 120 30 120 120 Bill Amount (S) Tip Amount ($) Tip Amount ($) Tip Amount ($) Tip Amount ($)
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