STATS 250 Study Guide - Midterm Guide: Confidence Interval, Sampling Distribution, Test Statistic
49
STATS 250 Full Course Notes
Verified Note
49 documents
Document Summary
When solving for n round up to next largest whole number: find ho (p =) and ha (p , , assume ho true, < one sided (shade to left, > one sided (shade to right, two sided (mark the positive and negative values and shade the tails, verify conditions, random sample, npo 10 and n(1 po) 10, find test statistic, z = (p po)/ [(po(1 po))/n, find p value, check table a. 1 using z score, if shaded to right do 1 p value, is it statistically significant, if p value significance level, yes, there is sufficient evidence to reject the null hypothesis that for the population . Independent if: random samples are taken separately from 2 populations (and same response variable is taken, there is one random sample and variables are recorded and then the units are categorized into 2 populations, units are randomly assigned to 1 of 2 treatment conditions (and the same response variable is taken)
