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Based on the data from six students, the regression equation relating number of hours of preparation (x) and test score (y) is . the same data yield and what is the best predicted test score for a student who spent 10 hours preparing for the test?

2 Answers

5 votes

Answer:

78

Explanation:

User Scott Dowding
by
8.9k points
4 votes

Answer:

The predicted test score for a student who spent 10 hours preparing for the test is 78.

Explanation:

The regression equation is used to determine the predicted value of the response or dependent variable based on an explanatory or independent variable.

The general form of a regression equation is:


y=\alpha +\beta x

Here,

y = dependent variable

x = independent variable

α = intercept

β = slope

The regression equation relating number of hours of preparation (x) and test score (y) is:


y=67.3+1.07x

Compute the value of y for x = 10 as follows:


y=67.3+1.07x


=67.3+(1.07* 10)\\=67.3+10.7\\=78

Thus, the predicted test score for a student who spent 10 hours preparing for the test is 78.

User Sachin Titus
by
7.4k points

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