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Stats Exam 3 Sampling Distribution Flashcards | StudBud

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Stats Exam 3 Sampling Distribution

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Review for Chapter 7 AP Statistics test.

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Questions 5

Answers

1
The shape of the sampling distribution of mean scores for 36 students is . . .
approximately Normal
skewed right
exactly Normal
symmetry and mound shaped, but not Normal
2
Which of the following is correct?
the population is a subset of the sample
parameters describe population characteristics
parameters describe sample characteristics
statistics must be based on a simple random sample
3
The variability of a statistic is described by
probability calculations
the vagueness in the wording of the question
the spread of its sampling distribution
the amount of bias present
4
To reduce the variability of estimates from a simple random sample
use a larger sample
increase the bias
use a smaller sample space
use a count, not a percent
5
The CLT says when a SRS is drawn from any population, when n is large, the
distribution of the sample mean is exactly Normal
standard deviation is o^2/n
distribution of the population is exactly Normal
distribution of the sample mean is approx. Normal