PSYC 250 Statistics for the Social Sciences Lab Confidence Intervals in SPSS Report all numeric answers...

Transcribed Image Text:

PSYC 250 Statistics for the Social Sciences Lab Confidence Intervals in SPSS Report all numeric answers to two decimal places. Thus, .374236 would round to .37 and 42 would be reported as 42.00. To report the confidence intervals, use APA format: 95% CI [3.81, 5.25] A. Explore Command Confidence Interval 2. What is the 95% CI for the first reading test? Case Processing Summary Cases Valid Missing Total N Percent N Percent N Percent read1 200 100.0% 0.0% 200 100.0% Descriptives Statistic Std. Error read1 Mean 48.6300 .51036 95% Confidence Interval Lower Bound 47.6236 for Mean Upper Bound 49.6364 5% Trimmed Mean 48.9500 Median 50.0000 Variance 52.094 Std. Deviation 7.21759 Minimum 27.00 Maximum 60.00 Range 33.00 Interquartile Range 12.00 Skewness -.495 .172 Kurtosis -.516 .342 Scanned with CamScanner PSYC 250 Statistics for the Social Sciences Lab Confidence Intervals in SPSS Report all numeric answers to two decimal places. Thus, .374236 would round to .37 and 42 would be reported as 42.00. To report the confidence intervals, use APA format: 95% CI [3.81, 5.25] A. Explore Command Confidence Interval 2. What is the 95% CI for the first reading test? Case Processing Summary Cases Valid Missing Total N Percent N Percent N Percent read1 200 100.0% 0.0% 200 100.0% Descriptives Statistic Std. Error read1 Mean 48.6300 .51036 95% Confidence Interval Lower Bound 47.6236 for Mean Upper Bound 49.6364 5% Trimmed Mean 48.9500 Median 50.0000 Variance 52.094 Std. Deviation 7.21759 Minimum 27.00 Maximum 60.00 Range 33.00 Interquartile Range 12.00 Skewness -.495 .172 Kurtosis -.516 .342 Scanned with CamScanner