Which of the following is the test statistic for the hypothesis test? (a) t = 7.9 9 2.1 !28 (b) t = 9 7.9 2.1 !28 (c) t = 7.9 9 2.1 28 (d) t = 7.9 9 2.1 !27 (e) t = 9 7.9 2.1 !27

Chapter 2 2.1 Statistics is all about data: (nothing but counts and measurement) Data- Qualitative: names, labels, etc. Ex. Gender survey Quantitative: numerical count (discrete), sibling survey (numerical discrete) Measurement (continuous), height survey (numerical continuous) Examples: Exam 1 (2012) Q. 14.) B Q. 15.) C 2.2 Other forms: ordinal variable ex. Level of lower back pain...