Advertisements
Advertisements
प्रश्न
Define critical region
Advertisements
उत्तर
The critical region is the region of values that corresponds to the rejection of the null hypothesis at some chosen probability level.
For the two-tailed test, the critical region is given below:
Where α is the level of significance.
APPEARS IN
संबंधित प्रश्न
What is null hypothesis? Give an example
Define the level of significance
What is a type I error?
A sample of 400 individuals is found to have a mean height of 67.47 inches. Can it be reasonably regarded as a sample from a large population with a mean height of 67.39 inches and standard deviation of 1.30 inches?
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:
A ______ is a statement or an assertion about the population parameter
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
The mean I.Q of a sample of 1600 children was 99. Is it likely that this was a random sample from a population with a mean I.Q 100 and standard deviation of 15? (Test at 5% level of significance)
