Suppose that a researcher, using data on class size (CS) and average test scores from 97 third-grade classes, estimates the

Question

3 years ago

10

Suppose that a researcher, using data on class size (CS) and average test scores from 97 third-grade classes, estimates the

OLS regression
TestScore with caret = 504.788 + (-5.6454 )CS, R^2 = 0.06, SER = 11.2.
A. A classroom has 23 students. The regression's prediction for that classroom's average test score is:________. (Round your response to two decimal places.)
B. Last year a classroom had 20 students, and this year it has 24 students. The regression's prediction for the change in the classroom average test score is:________. (Round your response to two decimal places.)
C. The sample average class size across the 97 classrooms is 20.76. The sample average of the test scores across the 97 classrooms is:________. (Hint: Review the formulas for the OLS estimators.) (Round your response to two decimal places.)
D. The sample standard deviation of test scores across the 97 classrooms is:_________. (Hint: Review the formulas for the R^2 and SER.) (Round your response to one decimal place.)

Mathematics

1 answer:

Oliga [24] · Answer 1 · 2022-08-11T17:40:59+03:00

Oliga [24]3 years ago

5 0

Answer:

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Step-by-step explanation:

bro im young and no idea what this is so yay

Suppose that a​ researcher, using data on class size ​(CS​) and average test scores from 97 ​third-grade classes, estimates the

Suppose that a researcher, using data on class size (CS) and average test scores from 97 third-grade classes, estimates the