HYPOTHESIS TESTING

Question 1

It is an assertion concerning characteristics of the population.

Answer 1

statistical hypothesis

Question 2

Types of Hypothesis:

Answer 2

1. null hypothesis which is denoted by H_0

2. alternative hypothesis which is denoted by H_1

Question 3

Is a statement which uses the equality symbol (=). (Contains phrases like no significant difference, no significant relationship, no significant effect, etc.)

Answer 3

Null hypothesis

Question 4

Is a statement which will be accepted if the null hypothesis is rejected. It uses ≠,.

Answer 4

Alternative hypothesis

Question 5

KINDS OF TESTS

Answer 5

1. One-tailed test

2. Two-tailed test

Question 6

This is used when the alternative hypothesis is expressed using the symbols < or >.

Answer 6

One-tailed test

Question 7

This is used when the alternative test is expressed using the symbol≠.

Answer 7

Two-tailed test

Question 8

True or False. One-tailed test can either be left-tailed or right-tailed.

Answer 8

True

Question 9

TYPES OF ERRORS

Answer 9

Type I

Type II

Question 10

It is committed when a true null hypothesis is rejected

Answer 10

Type I

Question 11

It is committed when there is a failure to reject a false null hypothesis.

Answer 11

Type II

Question 12

True or False. Type II is usually considered the more serious error.

Answer 12

False. Type I is usually considered the more serious error.

Question 13

Denoted by α, is the probability of committing a Type I error. On the other hand, the probability of committing a Type II error is denoted by β.

Answer 13

level of significance

Question 14

When the level of significance is not indicated, α=____ is used by convention.

Answer 14

0.05

Question 15

For most research studies, α is usually equated to ____ or ____ depending on the type of the study.

Answer 15

0.05 or 0.01

Question 16

This helps you determine the significance of your results.

Answer 16

P-value

Question 17

Also known as calculated probability, is the probability that the null hypothesis is true.

Answer 17

P-value

Question 18

True or False. A null hypothesis is rejected when the p-value is more than the level of significance.

Answer 18

False. A null hypothesis is rejected when the p-value is LESS THAN the level of significance.

Question 19

True or False. When a null hypothesis is not rejected, one will say “accept H_0”.

Answer 19

False. When a null hypothesis is not rejected, one CANT say “accept H_0”, rather one should say “failed to reject H_0”.

Question 20

Steps in Hypothesis Testing

Answer 20

Step 1. State the null and the alternative hypotheses.
Step 2. Set the level of significance.
Step 3. Choose an appropriate statistical tool or test statistic.
Step 4. Compute the test statistic and its p-value.
Step 5. Decide whether to reject or fail to reject the null the hypothesis.
Step 6. State the conclusion.