pasobcompass.blogg.se

MOOD’S MEDIAN TEST: STAT > NONPARAMETRICS> MOOD’S MEDIAN TEST Ĭompares the Medians of 2 or more Groups. MOOD’S MEDIAN TEST: STAT > NONPARAMETRICS> MOOD’S MEDIAN TEST ONE-WAY ANOVA (SESSION WINDOW & GRAPH RESULTS) Boxplot of DurabilityĪt least 1 Pair of Avgs are significantly different from each other. The sample Avgs are NOT significantly different from each other.Ĭompares the Averages for 2 or more Groups. Open worksheet Furnace.mtwĢ-SAMPLE T (SESSION WINDOW & GRAPH RESULTS)ĩ5% of the time the True Avg Difference will be between -1.450 & 0.980 which contains ZERO. Performs a two-sample t-test or t-confidence interval for the mean difference. _ X HoĢ-SAMPLE T-TEST: STAT > BASIC STATISTICS > 2-SAMPLE T The sample Avgs are significantly different from each other. (with Ho and 95% t-confidence interval for the mean) PAIRED T (SESSION WINDOW & GRAPH RESULTS) 95% of the time the True Avg Difference will be between -0.687& -0.133 which does NOT contain ZERO. Tests the mean difference between paired (related) observations. PAIRED T-TEST: STAT > BASIC STATISTICS > PAIRED T The sample Median is NOT significantly different from the Target of 115.ĩ5% of the time the True Median will be between 108.5 & 211.7 Performs a one-sample t-Sign or t-confidence interval for the median. Note: For n NONPARAMETRICS> 1-SAMPLE SIGN

Open worksheet EXH_Stat.mtwġ-SAMPLE T (SESSION WINDOW & GRAPH RESULTS) Performs a one-sample t-test or t-confidence interval for the mean. before Difference vs after) 2-Sample T 2 Each Other Average ANOVA 2+ Each Other Average Mood’s Median Test 2+ Each Other Medianġ-SAMPLE T-TEST: STAT > BASIC STATISTICS > 1-SAMPLE T # of Grps Comparison Statistic 1 Target Average 1 Target Median Paired Data Paired T 2 (e.g. Use for Normal Data Use for Non-Normal Data Test for Equal Variances for Fabric1 Bartlett's Test Test Statistic P-ValueĠ.4 0.5 0.6 0.7 0.8 0.9 95% Bonferroni Confidence Intervals for StDevsĬENTERING COMPARISON ANALYSES Response is Numeric & Factors are Text or Numeric Analysis 1-Sample T 1-Sample Sign TEST FOR EQUAL VARIANCES (SESSION WINDOW & GRAPH RESULTS) TEST FOR EQUAL VARIANCES: STAT > ANOVA > TEST FOR EQUAL VARIANCES Since all p-values are > 0.05, conclude each data set is NORMA LLY DISTRIBUTED.

PROBABILITY PLOT Probability Plot of Fabric1 Normal Use to display overlaid probability plots of multiple variables and/or multiple groups on the same graph.

Trend Analysis – Under Stat > Time Series: We won’t be covering in this class. Stability – Run Chart (Feb 4th) or Control Chart (Mar 4th) Shape – Histogram (Feb 4th) or Probability Plot Spread – Test for Equal Variances Centering – 1-Sample T-test, 1-Sample Sign, Paired T, 2-Sample T-test, ANOVA or Mood’s Median TestĬomparing Proportions - 1 Proportion, 2 Proportionīasic Linear Regression – Fitted Line PlotĬhi-Squared – Cross Tabulation and Chi-Square Comparing 1 Group to a Target / Specification OR Comparing 2+ Groups to Each Other: 1) 2) 3) 4)