# Shared Flashcard Set

## Details

SOCI 3331 - Sociological Statistics - MacLennan
Chapter 6
7
Sociology
06/13/2011

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