Statistical Methods for Psychology

Section 7.4 Hypothesis Tests Applied to Means—Two Matched Samples 195

3.0 3.5 4.0 4.5 5.5 6.5

μ

5.0 6.0 7.0

Figure 7.6 Confidence intervals computed on 25 samples from a population
with m 5 5

One-Sample Statistics

N Mean Std. Deviation Std. Error Mean

Ratio 10 1.4630 .34069 .10773

One-Sample Test

Test Value 51

tdfSig. Mean 95% Confidence Interval

(2-tailed) Difference of the Difference

Lower Upper

Ratio 4.298 9 .002 .46300 .2193 .7067

Exihibit 7.1 SPSS for one-sample ttest and confidence limits