stats_review_card_triola

# P value method of testing hypotheses uses decision

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: atistic that do not lead to rejection of null hypothesis. P-value method of testing hypotheses: Uses decision criterion of rejecting null hypothesis only if Pvalue … a (where a = significance level). P-value: Probability of getting value of test statistic at least as extreme as the one found from sample data, assuming that null hypothesis is true. Left-Tailed Test: P-value = area to left of test statistic. Right-Tailed Test: P-value = area to right of test statistic. Two-Tailed Test: P-value = twice the area in tail beyond test statistic. where P1B ƒ A2 is P1B2 assuming that event A has already occurred. Cn One Mean: Requires simple random sample and either n 7 30 or normally distributed population. Test statistic z= x - mx q s 1n x - mx q s 1n 1for s known2 Counting Fundamental Counting Rule: If an event can occur m ways and a second event can occur n ways, together they can occur m # n ways. Factorial Rule: n different items can be arranged n! different ways. Permutations (order counts) of r items selected from n different items: nPr Poisson Distribution: Discrete probability distribution that appli...
View Full Document

## This note was uploaded on 06/08/2010 for the course MATH 1123 taught by Professor Serpa during the Spring '10 term at Hawaii Pacific.

Ask a homework question - tutors are online