All California schools receive an annual academic performance index (API) that is intended to measure the quality
Question:
a. According to the regression line, what's the mean API score of schools in which no students receive free or reduced-price meals?
b. Interpret the slope in context.
c. State the 95% confidence interval for the slope.
d. A school administrator argues that in California, there is no relationship between the percentage of students who receive free or reduced price meals at a school and that school's API score. Use your confidence interval for the slope to respond to this claim.
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Related Book For
Introductory Statistics Exploring The World Through Data
ISBN: 9780321978271
2nd Edition
Authors: Robert Gould, Colleen Ryan
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