Sociology 2205A/B Study Guide - Final Guide: Scatter Plot, Multivariate Normal Distribution, Chi-Squared Distribution

• School: Western University
• Department: Sociology
• Course: Sociology 2205A/B
• Professor: Catherine Gelinas

Document Summary

=one-tailed test (all of the critical region is placed on the side of the curve in the direction of the prediction, 2 tailed splits the critical region equally on both sides of the curve, =0. 05 (when your sample size is less than 1000), 0. 01 (sample size greater than 1000) Chap 7 examples: z-distribution the edu(cid:272)atio(cid:374) depa(cid:396)t(cid:373)e(cid:374)t at a u(cid:374)ive(cid:396)sity has (cid:271)ee(cid:374) a(cid:272)(cid:272)used of (cid:862)g(cid:396)ade i(cid:374)flatio(cid:374)(cid:863) so edu(cid:272)atio(cid:374) (cid:373)ajo(cid:396)s have (cid:373)u(cid:272)h highe(cid:396) gpas tha(cid:374) stude(cid:374)ts i(cid:374) ge(cid:374)e(cid:396)al. The ave(cid:396)age gpa fo(cid:396) all ratio, sampling distribution is normal in shape (this is a large sample, n<100). Step 2: ho: =2. 70, no difference between the sample statistic & the population parameter, hi: 2. 70, there is a difference b/w the sample statistic & population parameter. Step 3: sampling distribution= z distribution, =0. 05, z(critical)= 1. 96, two tailed test. students is 2. 70 ( ), (cid:1876)= 3. 00, s=0. 70, n=117. Step 1: random sampling, level of measurement is interval- (cid:3046)/ (cid:3041) (cid:2869)=(cid:886). (cid:888)(cid:884)