Review

Question 1

A poll asked 1,190 people if they prefer A over B;59% said yes. Suppose that in fact 62% favor A, Identify the parameter

Accepted Answer

62%

Question 2

a number that describes some characteristic of the population

Accepted Answer

parameter

Question 3

What is the equation for standard deviation when using means?

Accepted Answer

=sx divided by n

Question 4

statistics must be based on a simple random sample

Accepted Answer

False

Question 5

Which is characterized as a percent

Accepted Answer

sample proportions

Question 6

With a 90% satisfaction, what is the probability that a random sample of 150 has less than 85% satisfaction?

Accepted Answer

.0186

Question 7

the population is a subset of the sample

Accepted Answer

False

Question 8

for a sample mean, the sample must be greater than what number?

Accepted Answer

30

Question 9

a number that describes some characteristic of a sample

Accepted Answer

statistic

Question 10

the distribution of all values taken by a statistic in all possible samples of the same size from the same proportion

Accepted Answer

sampling distribution

Questions 10