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प्रश्न
Choose the correct alternative:
Errors in sampling are of
विकल्प
Two types
three type
four types
five types
उत्तर
Two types
APPEARS IN
संबंधित प्रश्न
Define alternative hypothesis
Define critical region
Define critical value
Define the level of significance
What is a type I error?
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
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
Explain in detail the test of significance of a single mean
