10/10/2016

Statistical Inference for two means (return to Pulse.R from previous class)

• Two-sample Z procedures (Not often applied)
• Two-sample t procedures
• The pooled two-sample t procedures

Class Exercises

• Return to our data from the survey on the first day of class. Are there statistically significant differences in the means for men and women for the following variables:
  • Height.in.Inches
  • Wingspan.in.Inches
  • White.string
  • Black.string
  • Pulse.rate
  • Haircut.cost
  • Text.messages
• 5.25, 5.27, 5.29, 5.35

Please bring your review questions on Wednesday. Our exam on Friday will cover Chapters 1 through 5 (up to Section 5.3).