statistics quiz

A Senior High School in the Division of Negros Oriental is reported that out of 5000

Academic Track students 1800 are in General Academic Strand (GAS), 2050 are in

HUMSS, all the rest belong to STEM. What is the population proportion of p, for

STEM.

• A. 0.41

• B. 0.36

• C. 0.23

• D. 0.77

In a two-tailed type of test, what symbol you are going to use in an alternative

hypothesis?

• A. >

• B. <

• c. =

• D. ≠

This helps to decide whether to accept or reject a formulated statement after

evaluation of the sample.

• A. Hypothesis testing

• B. Using significance level

• C. Use of any test statistic

• D. Avoiding type I and type II Error

When can we decide to reject a null hypothesis in the left-tail level of significance?

• A. If the absolute computed value of the test statistic is greater than the absolute

  critical value.

• B. If the absolute critical value of the test statistic is less than or equal to than the absolute

  computed value.

• C. If the significance level is equal to the test statistic

• D. If the first four steps are met, then we decide to reject a null hypothesis.

After a significance level is chosen, a _____________ is selected from a table for the

appropriate test.

• A. Computed value

• B. A range of values

• C. Absolute value

• D. Critical value

The rejection region can be located on the following EXCEPT.

• A. On top of the normal curve

• B. On both sides with the nonrejection region in the middle

• C. On the left side of the nonrejection region

• D. On the right side of the nonrejection region

The five steps in “Hypothesis Testing of Population Proportion” used in this lesson

are arranged accordingly in one of the choices below.

i.

Compute the value of the test statistic.

ii.

Identify the test statistic to use.

iii.

Formulate the null and alternative hypotheses.

iv.

State the conclusion.

v.

Make a decision

• A. i, ii, iii, iv, v

• B. iv, v, i, iii, ii

• C. iii, ii, i, v, iv

• D. iii, ii, iv, v, i

When the null hypothesis is rejected, which of the following is true?

• A. There is sufficient evidence to back up the decision.

• B. There is no sufficient evidence to back up the decision

• C. The conclusion is guaranteed.

• D. The conclusion is not guaranteed.

When the alternative hypothesis utilizes the > or the < symbol, the test is said to be

• A. Directional

• B. Non-directional

• C. Critical

• D. not equal

Which of the following describes a Type I error?

• a. Accepting the null hypothesis when it is true

• b. Failing to accept the alternative hypothesis when it is true

• c. Rejecting the null hypothesis when it is true

• Failing to reject the alternative hypothesis when it is false