Advertisements
Advertisements
Question
Choose the correct alternative:
The standard error of sample mean is
Options
`sigma/sqrt(2"n")`
`sigma/"n"`
`sigma/sqrt("n")`
`sigma^2/sqrt("n")`
Advertisements
Solution
`sigma/sqrt("n")`
APPEARS IN
RELATED QUESTIONS
Define alternative hypothesis
Define critical value
What is single tailed test
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 average score on a nationally administered aptitude test was 76 and the corresponding standard deviation was 8. In order to evaluate a state’s education system, the scores of 100 of the state’s students were randomly selected. These students had an average score of 72. Test at a significance level of 0.05 if there is a significant difference between the state scores and the national scores
Choose the correct alternative:
Errors in sampling are of
Choose the correct alternative:
A ______ is a statement or an assertion about the population parameter
Choose the correct alternative:
Type I error is
Explain the procedures of testing of hypothesis
Explain in detail the test of significance of a single mean
