A statement made about a population for testing purpose is called?
A statement whose validity is tested on the basis of a sample is called?
Answer: Statistical Hypothesis
The rejection probability of Null Hypothesis when it is true is called as?
Answer: Level of Significance
If the Critical region is evenly distributed then the test is referred as?
Which of the following is defined as the rule or formula to test a Null Hypothesis?
Consider a hypothesis where H0 where ϕ0 = 23 against H1 where ϕ1 < 23. The test is?
Type 1 error occurs when?
Answer: We reject H0 if it is True
Alternative Hypothesis is also called as?
Answer: Research Hypothesis
A Type I error occurs when we:
Answer: Reject A True Null Hypothesis
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
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
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
The purpose of hypothesis testing is to:
Answer: determine whether a statistical result is significant
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?
To test a hypothesis involving proportions, both np and n(1-p) should
Answer: Be greater than 5
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
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
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
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?
Which of the following p-values will lead us to reject the null hypothesis if the significance level of the test if 5%?