Statistics for the Behavioral Sciences
Quiz 7: Estimation and Sampling Distributions
200 Students Scored a Mean of 500 with a Sum
200 students scored a mean of 500 with a sum of squares of 1000 on the SAT-Verbal test.What is variance estimate? A)2.242 B)2.236 C)5.000 D)5.025
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The variance estimate is an example of a A)degree of freedom. B)mean square. C)sampling distribution of the variance. D)population parameter.
According to the central limit theorem,the sampling distribution of the mean approximates a _____ distribution as the sample size _____. A)normal;becomes smaller B)skewed;becomes smaller C)normal;approaches infinity D)skewed;approaches infinity E)none of these
The mean of the sampling distribution of the mean is always equal to A)the population mean. B)the population mean minus one. C)the population mean minus the sampling error. D)the population mean plus the sampling error.
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