Answer Happy

In a study of the relationship between hours of studying (X) and
grade for an in percent (Y), the following regression equation was
obtained: The predicted grade for a student who studied 4.25 hours
is y= 48.377+6.423x ... Group of answer choices 59.050 72.863
74.069 75.675
In a study of the relationship between hours of studying (X) and
grade for an in percent (Y), the following regression equation was
obtained:
y^'=48.377+6.423x
The interpretation of b is...
For every 1-hour decrease in study time, the grade increases by
6.423.
For every 1-hour increase in study time, the grade decreases by
6.423.
For every 1-hour increase in study time, the grade increases by
6.423.
None of the above
In a study of the relationship between hours of studying (X) and
grade for an in percent (Y), the following regression
equation was obtained:
y=45.677+10.432x
The interpretation of a is:
The mean grade for the is 45.677
When the number of hour studies is equal to 0, the mean grade
for the is 45.677
The mean grade for theis 56.1.
None of the above