Answer: Hypothesis

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Questions

2
A statement whose validity is tested on the basis of a sample is called?

Answer: Statistical Hypothesis

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3
The rejection probability of Null Hypothesis when it is true is called as?

Answer: Level of Significance

4
If the Critical region is evenly distributed then the test is referred as?

Answer: Two tailed

5
Which of the following is defined as the rule or formula to test a Null Hypothesis?

Answer: Test statistic

6
Consider a hypothesis where H0 where ϕ0 = 23 against H1 where ϕ1 < 23. The test is?

Answer: Left tailed

10
If a hypothesis is rejected at the 0.025 level of significance, it:

Answer: May Or May Not Be Rejected At The 0.01 Level

11
In a one-tail test for the population mean, if the null hypothesis is not rejected when the alternative hypothesis is true, then:

Answer: A Type Ii Error Is Committed

12
If we do not reject the null hypothesis, we conclude that:

Answer: there is not enough statistical evidence to infer that the alternative hypothesis is true

13
The purpose of hypothesis testing is to:

Answer: determine whether a statistical result is significant

14
In hypothesis testing, what level of significance would be most appropriate to choose if you knew that making a Type I error would be more costly than making a Type II error?

Answer: 0.005

15
To test a hypothesis involving proportions, both np and n(1-p) should

Answer: Be greater than 5

16
What assumption is being made when we use the t-distribution to perform a hypothesis test?

Answer: That the underlying population follows an approximately Normal distribution

17
The p-value obtained from a classical hypothesis test is:

Answer: the probability of observing the data or more extreme values if the null hypothesis is true

18
Which of the following statements about hypothesis testing is true?

Answer: If the p-value is greater than the significance level, we fail to reject Ho

19
Suppose that we reject a null hypothesis at the 5% level of significance. For which of the following levels of significance do we also reject the null hypothesis?

Answer: 6%

20
Which of the following p-values will lead us to reject the null hypothesis if the significance level of the test if 5%?

Answer: 0.025

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