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प्रश्न
Choose the correct alternative:
A ______ is a statement or an assertion about the population parameter
पर्याय
hypothesis
statistic
sample
census
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उत्तर
hypothesis
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संबंधित प्रश्न
What is null hypothesis? Give an example
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Define critical value
What is single tailed test
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 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?
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Errors in sampling are of
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Type I error is
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Type II error is
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The standard error of sample mean is
