stats_review_card_triola

N x p q px fixed number of trials number of successes

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ries, and constant probability. n: x: p: q: P(x): Fixed number of trials Number of successes in n trials Probability of success in one trial Probability of failure in one trial Probability of x successes in n trials P1x2 = m = np s = 1npq n! # px # qn-x 1n - x2!x! Mean (binomial) St. dev. (binomial) Proportion: n= n= Measures of Center: Population mean: m gx Sample mean: x = n Mean from frequency dist.: g 1 f # x2 x= n Median: Middle value of data arranged in order. Mode: Most frequent data value. highest + lowest Midrange: 2 Measures of Variation: Range: maximum - minimum Sample standard deviation: s= g 1 x - x2 2 3za>242 # 0.25 E 2 Reject H0 Describing, Exploring, and Comparing Data Determining Sample Size NN 3za>242 pq E 2 N N 1 p and q known2 Mean: n = c za>2s E d 2 Matched Pairs: d - E 6 md 6 d + E sd where E = ta>2 and df = n - 1 1n HYPOTHESIS TEST: TWO-TAILED Significance Level A 0.05 0.01 0.10 Critical Value ±1.96 ±2.575 ±1.645 “There is sufficient evidence to warrant rejection...
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