Advertisements
Advertisements
प्रश्न
Define the level of significance
Advertisements
उत्तर
The probability of type 1 error is known as level. of significance and it is denoted by the level of significance is usually employed in testing of hypothesis are 5% and 1%.
The level of significance is always fixed in advanced before collecting the sample information.
APPEARS IN
संबंधित प्रश्न
What is null hypothesis? Give an example
Define alternative hypothesis
Define critical region
What is a type I error?
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 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:
Type II error is
Choose the correct alternative:
The standard error of sample mean is
Explain in detail the test of significance of a single mean
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)
