4: One Sample Tests of Hypothesis

Question 1

___ is a statement about a population parameter subject to verification.

Answer 1

Hypothesis

Question 2

___ is a procedure based on sample evidence and probability theory to determine whether the hypothesis is a reasonable statement.

Answer 2

Hypothesis testing

Question 3

What are the 6-Steps for Testing a Hypothesis?

1. ___
2. ___
3. ___
4. ___
5. ___
6. ___

Answer 3

Step 1: State the Null Hypothesis (H0) and the Alternate Hypothesis (H1)2.
Step 2: Select a Level of Significance
Step 3: Select the Test Statistic
Step 4: Formulate the Decision Rule
Step 5: Make a Decision
Step 6: Interpret the Result

Question 4

___ is a statement about the value of a population parameter developed for the purpose of testing numerical evidence.

Answer 4

Null hypothesis

Question 5

___ is a statement that is accepted if the sample data provide sufficient evidence that the null hypothesis is false.

Answer 5

Alternative hypothesis

Question 6

___ is the probability of rejecting the null hypothesis when it is true.

Answer 6

Level of significance

Question 7

A ___ is a statement of specific conditions under which the null hypothesis is rejected and the conditions under which it is not rejected.

Answer 7

Decision rule

Question 8

___ occurs when a true null hypothesis is rejected.

Answer 8

Type I Error (α)

Question 9

___ occurs when a false null hypothesis is not rejected.

Answer 9

Type II Error (β)

Question 10

___ is a value, determined from sample information, used to determine whether to reject the null hypothesis.

Answer 10

Test statistic

Question 11

___ is the dividing point between the region where the null hypothesis is rejected and the region where it is not rejected.

Answer 11

Critical value

Question 12

___ is the probability of observing a sample value as extreme as, or more extreme than, the value observed, given that the null hypothesis is true.

Answer 12

P-value

Question 13

If the p-value is less than

(a) ___, we have some evidence that H0 is not true.
(b) ___, we have strong evidence that H0 is not true.
(c) ___, we have very strong evidence that H0 is not true.
(d) ___, we have extremely strong evidence that H0 is not true.

Answer 13

(a) .10
(b) . .05
(c) . .01
(d) . .001

Question 14

A ___ test is a statistical test in which the critical area of a distribution is one-sided so that it is either greater than or less than a certain value, but not both. If the sample being tested falls into the one-sided critical area, the alternative hypothesis will be accepted instead of the null hypothesis.

Answer 14

One-tailed test

Question 15

A ___ test is a statistical test in which the critical area of a distribution is two-sided and tests whether a sample is greater than or less than a certain range of values. If the sample being tested falls into either of the critical areas, the alternative hypothesis is accepted instead of the null hypothesis.

Answer 15

Two-tailed test