Question

1. Choose the correct statistical decision at the 0.05 significance level based on the given research...

1. Choose the correct statistical decision at the 0.05 significance level based on the given research finding.

A researcher measured the amount of relationship as “4.68” from the normal distribution with mean = 2 and standard deviation = 1.

A. The observed sample relationship is inside the critical region. B. The observed sample relationship is outside the critical region. C. We need more information to decide.
D. There is no significant relationship

2. When the p-value is observed as 0.014, find the correct statement at the 0.01 significance level.

A. We reject the null hypothesis.
B. There is a significant relationship.
C. There is no significant relationship.
D. The observed value is inside the critical region.

3. Based on the given Z table, which standard score value is outside the critical region at the 0.05 significance level.

A. 2.99 B. 1.99 C. 0.99 D. 3.01

4. Which one is NOT a correct statement about the Type I error?
A. It indicates the chance that a research make a decision of “significant relationship”

when there is no relationship in the population.
B. The probability to make the Type I error is “Alpha” in statistics
C. Significance Value shows the amount of Type I error in the study.
D. The amount of allowed Type I error in the study is same with Significance level.

5. Which one is a Correct statement about the Type II error?
A. It indicates the chance that a research makes a decision of “significant relationship”

when there is no relationship in the population.
B. It indicates the chance that a research makes a decision when there is not enough

information about the population.
C. It indicates the chance that a research makes a decision of “no significant relationship”

when there is a relationship in the population.
D. It indicates the chance that a research fails to make a decision when there is enough

information about the population.

6. If there is a significant relationship at the 0.003 significance level,
A. We are not sure about the significant relationship at the 0.01 significance level. B. We are sure that there is no significant relationship at the 0.01 significance level. C. We are sure that there is a significant relationship at the 0.01 significance level. D. We are sure that there is a significant relationship at the 0.001 significance level.

Math   Statistics-And-Probability   
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