Sampling Distribution AP Stat Ch. 7

Question 1

What is the symbol for population proportion?

Accepted Answer

p, π

Question 2

If a sample statistic is a good approximation of a population parameter, it is a(n):

Accepted Answer

Unbiased Estimator

Question 3

The CLT says when a SRS is drawn from any population, when n is large, the

Accepted Answer

distribution of the sample mean is approx. Normal

Question 4

Which of the following is correct?

Accepted Answer

parameters describe population characteristics

Question 5

The variability of a statistic is described by

Accepted Answer

the spread of its sampling distribution

Question 6

If you discover that Northside High only has 200 seniors, what would a sample of 36 violate?

Accepted Answer

10% Rule

Question 7

Failing the 10% Rule prevents you from finding:

Accepted Answer

Standard Deviation

Question 8

Which symbol is the population mean?

Accepted Answer

μ

Question 9

To reduce the variability of estimates from a simple random sample

Accepted Answer

use a larger sample

Question 10

Which establishes normality for sample proportions?

Accepted Answer

Large Counts Condition

Question 11

What is the symbol for sample proportion?

Accepted Answer

p̂

Question 12

A survey conducted found that 79% agree that Internet is a necessity. 79% is a...

Accepted Answer

statistic

Question 13

The standard deviation of p is approximately

Accepted Answer

sqrt[p(1-p)/n]

Question 14

The shape of the sampling distribution for 36 students drawn from a skewed right population is

Accepted Answer

approximately Normal

Questions 14