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11 Cards in this Set

  • Front
  • Back
indicates the location of sample on the sampling distribution of means we sampling from a raw score population.
critical value that marks the region of rejection
df for a one-sample t-test
df = N-1
confidence interval
describes a range of mews, any one of which the sample mean is likely to represent. Confidence that the interval contains the mew equals (1-alpha) (100)
degrees of freedom
number of scores that are free to vary
estimated standard error of the mean
an estimate of the standard deviation of the sampling distribution of means, used in calculating the one-sample t-test; symbolized by sXw
interval estimation
A way to estimate a population pa­ram­eter by describing an interval within which the population parameter is expected to fall
one-sample t-test
The parametric procedure used to test the null hypothesis for a one-sample experiment when the standard deviation of the raw score population must be estimated
point estimation
A way to estimate a population parameter by describing a point on the variable at which the population parameter is expected to fall
The sampling distribution of all possible values of t that occur when samples of a particular size are selected from the raw score population described by the null hypothesis
What are the assumptions of the t-test?
1) There is a one-sample experiment using INTERVAL or RATIO scores.

2) The raw score population forms a NORMAL DISTRIBUTION

3) The variability of the raw score population is estimated from the sample.