Advertisements
Advertisements
Question
What is a type I error?
Solution
In statistical hypothesis testing, a type f error is the rejection of a true null hypothesis.
Example of type I errors includes a test that shows a patient to have a disease when he does not have the disease, a fire alarm going on indicating a fire when there is no fire or an experiment indicating that medical treatment should cure a disease when in fact it does not.
APPEARS IN
RELATED QUESTIONS
What is null hypothesis? Give an example
Define critical value
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:
A ______ is a statement or an assertion about the population parameter
Choose the correct alternative:
Type II error is
Choose the correct alternative:
The standard error of sample mean is
Explain the procedures of testing of hypothesis
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)
