{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

stats_review_card_triola

# N total number of nonzero signs x number of the less

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: original data values. Used to test claims involving matched pairs, nominal data, or claims about median. n: Total number of (nonzero) signs x: Number of the less frequent sign Test statistic if n … 25: x Test statistic if n 7 25: 1n> 2 Reject H0 if test statistic … critical values. Wilcoxon Signed-Ranks Test: Uses ranks of data consisting of matched pairs; based on ranks of differences between pairs of values. Used to test null hypothesis that two populations have same distribution. T : Smaller of two rank sums (sum of absolute values of negative ranks; sum of positive ranks) z= 1x + 0.52 - 1n> 22 Kruskal-Wallis Test: Used to test null hypothesis that three or more independent samples are from populations with same distribution. Requires at least five observations in each independent sample of randomly selected values. N: R1: n1: Total number of observations Sum of ranks for Sample 1 Number of values in Sample 1 Statistical Process Control Process Data: Data arranged according to some time sequence. Run Chart: Sequential plot of individual data values over time Control Chart of a process characteristic: Sequential plot over...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online