NEW
Font size
WorksheetsHypothesis Testing
Total questions: 10
Worksheet time: 5mins
1. It is the statistical method used in making decisions using experimental data.
observation
simple analysis
analytical testing
hypothesis testing
1. What term is being used to describe a proposed explanation, assertion, or assumption about a population parameter or about the distribution of a random variable?
statistic
decision
hypothesis
probability
It is also referred to as a probability of committing an incorrect decision about the null hypothesis.
level of error
level of statistic
level of acceptance
level of significance
Which of the following would be an appropriate null hypothesis?
The mean of a sample is equal to 80.
The mean of a population is equal to 80
The mean of a population is not equal to 80.
The mean of a population is greater than 80.
Which of the following describes a null hypothesis using two-tailed test?
𝐻0: 𝜇 = 𝜇0
𝐻0: 𝜇 ≠ 𝜇0
𝐻0: 𝜇 ≥ 𝜇0
𝜇 ≤ 𝜇0
Which of the following describes an alternative hypothesis using two- tailed test?
𝐻𝑎: 𝜇 < 50 𝑦𝑒𝑎𝑟𝑠 𝑜𝑙𝑑
𝐻𝑎: 𝜇 > 50 𝑦𝑒𝑎𝑟𝑠 𝑜𝑙𝑑
𝐻𝑎: 𝜇 ≠ 50 𝑦𝑒𝑎𝑟𝑠 𝑜𝑙𝑑
𝐻𝑎: 𝜇 = 50 𝑦𝑒𝑎𝑟𝑠 𝑜𝑙𝑑
Which of the following must be used as the significance level if we want a lower possibility of correct decision?
1%
5%
10%
2%
If the computed z-value is 1.915 and the critical value is 1.812, which of the following statements could be true?
It lies in the rejection region, 𝐻𝑜 must be rejected.
It lies in the rejection region, hence we fail to reject𝐻𝑜.
It lies in the non-rejection region, 𝐻𝑜 must be rejected.
It lies in the non-rejection region, hence we fail to reject𝐻𝑜.
Using a left-tailed test, which of the following value of z will not fall in the rejection region where the critical value is – 1.638?
– 1.637
– 1.639
– 1.641
– 1.706
If the computed z-value is 1.286 and the critical value is 1.383, which of the following statements could be true?
It lies in the rejection region, 𝐻𝑜 must be rejected.
It lies in the rejection region, hence we fail to reject𝐻𝑜.
It lies in the non-rejection region, 𝐻𝑜 must be rejected.
It lies in the non-rejection region, hence we fail to reject𝐻𝑜.
