AP Statisticsmediummcq1 pt
For n = 400 and p = 0.5, the standard error of p-hat is
A.0.025
B.0.05
C.0.25
D.0.5
Explanation
Core Concept
Root of (0.5)(0.5)/400 equals root of 0.000625, which is 0.025.
Correct Answer
A0.025
More Unit 5: Sampling Distributions practice questions
- mediumThe sample mean's standard error shrinks because
- easyThe sampling distribution of p-hat is approximately normal when
- mediumWhich action reduces bias in an estimator?
- easyLarger samples improve an estimate by
- easyThe CLT is used to
Practice more AP Statistics questions with full explanations
Practice Unit 5: Sampling Distributions Questions →