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प्रश्न
What is single tailed test
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उत्तर
A single-tailed test or a one-tailed test is a statistical test in which the critical area of a distribution is one-sided
So that it is either greater than or less than a certain value, but not both.
For the null hypothesis H0: µ = 16.91
The alternative hypothesis H1: µ > 16.91 or H1: µ < 16.91 are one-tailed tests.
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संबंधित प्रश्न
Define alternative hypothesis
Define critical value
Define the level of significance
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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:
Type I error is
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
