watching television statistics
How do you work this statistics math problem?
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (Each pair of variables has a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain way not.
TV and Test Scores – The number of hours 12 students watched television during the weekend and the scores of each student who took a test the following Monday.
Hours spent watching TV, x012335
Test score, y 968582749568
Hours spent watching TV, x5567710
Test score, y 768458657550
(a) x = 4 hours
(b) x = 8 hours
Data Set
TV hoursTest Score
096
185
282
374
395
568
576
584
658
765
775
1050
Data: (0,96), (1,85),(2,82), (3,74), (3,95),(5,68), (5,76),(5,84), (6,58), (7,65),(7,75), (10,50), n= 12
Linear: y = -4.067416x +93.97004; r = -.8312962 r^2 = .6910535
f(x) = -4.067416x+93.97004
f(4) =+77.70037600000001 = +77.70038
f(8) =+61.430712 = +61.43071
Interesting Statistics. PLEASE THINK TWICE…….
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