AP Statisticshardmcq1 pt
Why is a wider range of x-values helpful for slope inference?
A.spread in x estimates the slope more precisely
B.narrow x ranges are best
C.x spread is irrelevant
D.x spread only affects the intercept
Explanation
Core Concept
Leverage across x stabilizes b.
Correct Answer
Aspread in x estimates the slope more precisely
More Unit 9: Inference for Quantitative Data: Slopes practice questions
- mediumThe t interval for a slope is wider when
- mediumWhich is NOT a condition for slope inference?
- hardThe four conditions for slope inference mirror which earlier procedure?
- hardA slope test has H0: beta = 0 and Ha: beta < 0 with t = -2.1 and df = 10. The p-value is
- hardThe standard error of the slope gets smaller when
Practice more AP Statistics questions with full explanations
Practice Unit 9: Inference for Quantitative Data: Slopes Questions →