Chapter 7

Question 1

It is for the mean is the range of values within which the population mean m is expected to lie with a certain probability

Answer 1

Confidence interval

Question 2

Sometimes the limits of the interval are called?

Answer 2

confidence limits

Question 3

It is the probability that the true mean lies within a certain interval and is often expressed as a percentage.

Answer 3

The confidence level

Question 4

The probability that a result is outside the confidence interval is often called the?

Answer 4

significance level

Question 5

It postulates that two
or more observed quantities are the
same

Answer 5

null hypothesis

Question 6

This is called a ______ test since rejection can occur for results in either tail of the distribution

Answer 6

two-tailed

Question 7

The error that results from rejecting H0 when it is true is called a?

Answer 7

type I error

Question 8

A type of error that we accept H0 when it is false. This is term is?

Answer 8

type II error.

Question 9

a type I error is
called a?

Answer 9

false negative.

Question 10

A type II error
occurs when H0 is accepted and it is actually false. This is sometimes termed as a?

Answer 10

false positive.

Question 11

The different
values of the factor of interest are called?

Answer 11

levels