Chapters 7-8 Key Points and JMP Instructions

Example 1: Comparing Two Sample Means Means are different at the  =.05 level

Example 2: Comparing Two Sample Means with Paired Data (Matched Pairs) The mean difference between the pairs is not equal to zero at the  =.05 level

Example 3: Comparing Two Sample Proportions Proportions not different at the  =.05 level (p-values)

Example 4: Comparing Two Sample Standard Deviations (or Variances) Std devs are NOT different at  =.05 level

Example 5: Comparing 3 or More Means (ANOVA) Proportions not different at  =.05 level (p-value)