'Directional test' diaporamas de présentation

Everything You Ever wanted To Know About Statistics

599 views • 53 slides

Independent-Measures Hypothesis Testing

Independent-Measures Hypothesis Testing Unit 8 Ch 10: 1-5, 7, 9, 11, 13, 15, 19 (pp. 282-286) Comparing 2 sets of data 2 general research strategies data sets come from 2 separate groups independent samples between groups design 2 sets of data from 1 group dependent or related samples

707 views • 23 slides

Chi-square Basics

Chi-square Basics. The Chi-square distribution. Positively skewed but becomes symmetrical with increasing degrees of freedom Mean = k where k = degrees of freedom Variance = 2k Assuming a normally distributed dataset and sampling a single z 2 value at a time ? 2 (1) = z 2

626 views • 15 slides

Chi-square Basics

Chi-square Basics. The Chi-square distribution. Positively skewed but becomes symmetrical with increasing degrees of freedom Mean = k where k = degrees of freedom Variance = 2k Assuming a normally distributed dataset and sampling a single z 2 value at a time ? 2 (1) = z 2

278 views • 15 slides

Chi-square Basics

Chi-square Basics. The Chi-square distribution. Positively skewed but becomes symmetrical with increasing degrees of freedom Mean = k where k = degrees of freedom Variance = 2k Assuming a normally distributed dataset and sampling a single z 2 value at a time ? 2 (1) = z 2

157 views • 15 slides