Ch 13--Student's t for single samples.
2. When population is unknown
A. Generating hypotheses
B. Calculating the statistic
C. Evaluate the statistic
3. The sampling distribution of t
A. Definition of the t distribution is the same for the definition of any sampling distribution--it is
a probability distribution of all the possible values of t that could occur from all possible samples
of a given N.
B. Degrees of Freedom
C. t/z compared
4. Computation of tobt, using original scores
4. 2nd use of t: Confidence intervals for
A. Confidence interval: a range of values that probably contains the .
B. It's Confidence limits are the values that bound this range.
C. 95% Confidence interval
D. General Confidence Intervals
5. 3rd use of t: testing the significance of Pearson r
B. Calculate statistic
C. Evaluate results
i. sampling distribution of r, df=N-2