Question

In: Statistics and Probability

The amount of time a random person spends watching Netflix is being compared to the time...

The amount of time a random person spends watching Netflix is being compared to the time that person spends exercising. Times are in hours per week.

Time on Netflix

Time Exercising

14

7

8

12

3

9

24

2

19

5

11

12

a) Determine the value of the correlation coefficient and interpret its meaning.

b) Suppose the time on Netflix is being used to predict the time spent exercising. What would be the equation of the regression line? Express the slope and intercept with three digits past the decimal point.

c) Estimate the number of hours per week someone would exercise if they watched 15 hours of Netflix. Round your answer to the nearest hour.

Solutions

Expert Solution

C) according to the regression equation if we put X=15 in the equation er get Y

So Y= 7.833-(0.4282)15=7.0488

So rounding the value of Y to nearest integer we get Y=7 hours .

So for 15hours of Netflix estimated hours of excersice is 7 hours

orchestra answered 1 year ago
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