举一反三
- An unbiased estimator is a sample statistic, which has an expected value equal to the value of the population parameter.
- Which of the following is a statistic that can be used to test hypotheses about a single population parameter？（ ） A: χ2 statistic B: F statistic C: Durbin Watson statistic D: t statistic
- Which of the following is a statistic that can be used to test hypotheses about a single population parameter? A: F statistic B: t statistic C: LM statistic D: Durbin Watson statistic
- Which of the following is a statistic that can be used to test hypotheses about a single population parameter? 未知类型：{'options': ['F statistic', 't statistic', 'Durbin Watson statistic', ''], 'type': 102}
- In a test of the mean of a population, if the population variance is: A: known, a z- distributed test statistic is appropriate. B: known, a t- distributed test statistic is appropriate. C: unknown, a z -distributed test statistic is appropriate.
内容
- 0
When estimating population parameters, a point estimate is:? always equal to a population value.|a range of possible values for a population parameter.|the population mean.|a statistic that estimates a population parameter.
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A summary measure that is computed to describe a characteristic from only a sample of the population is called A: a statistic. B: a parameter. C: a census. D: the scientific method.
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Which of the following is most likely a parameter as opposed to a statistic
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A statistic is usually unobservable while a parameter is usually observable.
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Which of the following is not necessary to determine a p-value? A: Knowledge of whether the test is one-tailed or two-tailed B: The value of the test statistic C: The level of significance D: Sample size