Statistics and Probability Quiz

In statistics, it proposes that there is no difference between certain characteristics of a population.

• Alternative hypotheses

• Null hypotheses

• Statistical hypotheses

• Substitute hypotheses

It is a position that states something is happening, a new theory is preferred instead of an old one.

• Alternative hypotheses

• Null hypotheses

• Statistical hypotheses

• Substitute hypotheses

Which of the following is a description of the power of the test?

• The probability of accepting the alternative hypothesis when it is true

• The probability of failing to accept the alternative hypothesis when it is true

• The probability of rejecting the null hypothesis when it is false

• The probability of accepting the null hypothesis when it is false

A researcher wants to estimate the average farm size in a certain province. From a sample random of 40 farms, the researcher obtains a sample mean farm size of 731 acres. Identify the parameter and statistic of the study.

• The parameter is the average farm size in the province while the statistics is the mean farm size of 731 acres from the sample of 40 farms.

• The statistic is the average farm size in the province while the parameter is the mean farm size of 731 acres from the sample of 40 farms.

• The parameter is 731 acres in the province while the statistic is the mean farm size of in the province.

• The statistic is the sample random of 40 farms while the parameter is 731 acres in the province.

A statistics senior high teacher believes that fewer than 20% of KSHS students answered the online examination through google forms. He surveys 84 of his students and finds that 11 answered the online exam. An appropriate alternative hypothesis is:

• p = 0.20

• p > 0.20

• p < 0.20

• p ≤ 0.2

What is the appropriate null hypothesis?

• The average tuition fee in the targeted university is at least Php15,000

• The average tuition fee in the targeted university is at most Php15, 000.

• The average tuition fee in the targeted university is less than Php15,000.

• The average tuition fee in the targeted university more than Php15,000.

Identify the level of significance.

• 0.2%

• 0.3%

• 0.4%

• 4%

What kind of test will be used?

• No -tailed Test

• One-tailed test.

• Three-tailed test

• Two-tailed test

What will be the appropriate alternative hypothesis?

• The average tuition fee in the targeted university is less Php15,000.

• The average tuition fee in the targeted university is more than Php15,000.

• The average tuition fee in the targeted university is at most Php15,000.

• The average tuition fee in the targeted university is at least Php15,000.

What test statistic to be used?

• zc = x-μsn

• tc = x-μsn

• tc = μ-xσn

• zc = x-μσn