Data is collected on the relationship between the average number of minutes spent exercising per day...
Data is collected on the relationship between the average number of minutes spent exercising per day and math test scores. The data is shown in the table and the line of best fit for the data is yˆ=0.44x+60.7.
Minutes 25303540 Test Score 72747579
(a) According to the line of best fit, the predicted test score for someone who spent 31 minutes exercising is 74.34.
PLEASE HELP WITH PART B
(b) Is it reasonable to use this line of best fit to make the above prediction?
Select the correct answer below:
The estimate, a predicted test score of 74.34, is both reliable and reasonable.
The estimate, a predicted test score of 74.34, is reliable but unreasonable.
The estimate, a predicted test score of 74.34, is unreliable but reasonable.
The estimate, a predicted test score of 74.34, is both unreliable and unreasonable.
Homework Answers
Ans:
b)As,31 minutes is in the range of sample data(i.e. as time varies from 25 to 40 minutes in the sample data),so it is reliable to predict for 31 minutes.
Correct option is:
The estimate, a predicted test score of 74.34, is both reliable and reasonable.
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