Advertisements
Advertisements
Question
Define critical value
Advertisements
Solution
A critical value is a point on the test distribution that is compared to the test statistic to determine whether to reject the null hypothesis.
It depends on the level of significance. For example, if the confidence level is 90% then the critical value is 1.645
APPEARS IN
RELATED QUESTIONS
What is null hypothesis? Give an example
Define alternative hypothesis
What is a type I error?
What is single tailed test
A sample of 100 items, draw from a universe with mean value 4 and S.D 3, has a mean value 63.5. Is the difference in the mean significant at 0.05 level of significance?
The mean breaking strength of cables supplied by a manufacturer is 1,800 with a standard deviation of 100. By a new technique in the manufacturing process it is claimed that the breaking strength of the cables has increased. In order to test this claim a sample of 50 cables is tested. It is found that the mean breaking strength is 1,850. Can you support the claim at 0.01 level of significance?
Choose the correct alternative:
Errors in sampling are of
Choose the correct alternative:
Type I error is
Choose the correct alternative:
The standard error of sample mean is
Explain the procedures of testing of hypothesis
