Term
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Definition
In ______ sampling, every member of a population is given an equal chance of being selected for the sample.
A. Proportionate
B. Nonrandom
C. Probability
D. Random |
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Term
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Definition
The inevitable difference between the mean of a sample and the mean of a population based on chance alone is a ______.
A. Random Sample
B. Confidence Interval
C. Sampling Error
D. Probability |
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Term
| C. Sampling Distribution of Means |
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Definition
A frequency distribution of a random sample of means is a ______.
A. Random Sample
B. Confidence Interval
C. Sampling Distribution of Means
D. Standard Error of the Mean |
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Term
| D. Because of sampling error |
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Definition
Why does a sampling distribution of means take the shape of the normal curve?
A. Because of skewness
B. Because of probablity
C. Because of confidence interval
D. Because of sampling error |
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Term
| A. in the tails of the distribution. |
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Definition
Alpha represents the area _____.
A. in the tails of a distribution
B. toward the center of the distribution.
C. higher than the mean of the distribution.
D. lower than the mean of the distribution. |
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Term
Standard error of proportion
(95%) = P ± 1.96 * {sqrt[ p * (1 - p)/n ]}
(99%) = P ± 2.58 * {sqrt[ p * (1 - p)/n ]} |
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Definition
| The formulas for standard error of proportion is _____. |
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Term
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Definition
| What is the forumula for the mean? |
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