d. r. |(Round to two decimal places) e. Interpret p : O There is a 88% chance that the regression line will be a good predictor for the amount of money spent at the store based on the time spent at the store. O Given any group that spends a fixed amount of time at the store, 88% of all of those customers will spend the predicted amount of money at the store. O There is a large variation in the amount of money that customers spend at the store, but if you only look at customers who spend a fixed amount of time at the store, this variation on average is reduced by 88%. O 88% of all customers will spend the average amount of money at the store. f. The equation of the linear regression line is: ŷ - * (Please show your answers to two decimal places) 8. Use the model to predict the amount of money spent by a customer who spends 16 minutes at the store. Dollars spent - | (Please round your answer to the nearest whole number.) h. Interpret the slope of the regression line in the context of the question: O The slope has no practical meaning since you cannot predict what any individual customer will spend. O For every additional minute customers spend at the store, they tend to spend on averge $3.24 more money at the store. O As x goes up, y goes up. i. Interpret the y-intercept in the context of the question: Olf a customer spends no time at the store, then that customer will spend $13.5. O The average amount of money spent is predicted to be $13.5. O The best prediction for a customer who doesn't spend any time at the store is that the customer will spend $13.5. O The y-intercept has no practical meaning for this study.
d. r. |(Round to two decimal places) e. Interpret p : O There is a 88% chance that the regression line will be a good predictor for the amount of money spent at the store based on the time spent at the store. O Given any group that spends a fixed amount of time at the store, 88% of all of those customers will spend the predicted amount of money at the store. O There is a large variation in the amount of money that customers spend at the store, but if you only look at customers who spend a fixed amount of time at the store, this variation on average is reduced by 88%. O 88% of all customers will spend the average amount of money at the store. f. The equation of the linear regression line is: ŷ - * (Please show your answers to two decimal places) 8. Use the model to predict the amount of money spent by a customer who spends 16 minutes at the store. Dollars spent - | (Please round your answer to the nearest whole number.) h. Interpret the slope of the regression line in the context of the question: O The slope has no practical meaning since you cannot predict what any individual customer will spend. O For every additional minute customers spend at the store, they tend to spend on averge $3.24 more money at the store. O As x goes up, y goes up. i. Interpret the y-intercept in the context of the question: Olf a customer spends no time at the store, then that customer will spend $13.5. O The average amount of money spent is predicted to be $13.5. O The best prediction for a customer who doesn't spend any time at the store is that the customer will spend $13.5. O The y-intercept has no practical meaning for this study.
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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