Mathematics, 21.02.2020 05:56 paolaviviana
Colleges use SAT scores in the admissions process because they believe these scores provide some insight into how a high school student will perform at the college level. Suppose the entering freshmen at a certain college have mean combined SAT Scores of 1222, with a standard deviation of 123. In the first semester, these students attained a mean GPA of 2.66, with a standard deviation of 0.56. A scatterplot showed the association to be reasonably linear, and the correlation between SAT score and GPA was 0.47.
a. Write the equation of the regression line.
b. Explain what the y-intercept of the regression line indicates.
c. Interpret the slope of the regression line.
d. Predict the GPA of a freshman who scored a combined 1400.
e. Based upon these statistics, how effective do you think SAT scores would be in predicting academic success during the first semester of the freshman year at this college? Explain.
f. As a student, would you rather have a positive or a negative residual in this context? Explain.
Answers: 3
Mathematics, 21.06.2019 16:30, rhineharttori
Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.
Answers: 3
Mathematics, 21.06.2019 19:50, adjjones2011
The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:
Answers: 3
Colleges use SAT scores in the admissions process because they believe these scores provide some ins...
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