Mat 1227

Elementary Statistics

Problem Assignments

Chapter 1 Examining Distributions

Histograms, Stemplots, etc 1, 2, 3, 6, 7, 11, 13, 19

Median and Mean 21, 23, 25

Quartiles, Five-Number Summary, and Boxplots 27,

Standard Deviation 29, 33, 35, 37

Normal Distributions 43, 45, 47, 49, 51, 53, 55, 59, 63

Chapter 2 Examining Relationships

Scatterplots, 1, 3, 4, 5, 9, 11

Correlation , 11, 12, 17, 19, 21, 25

Least Squares Regression, 31, 33, 35, 39, 43 (use regression line: height = 71.9cm + .38*age, age in months)

Lurking Variables, Extrapolation, and Causation. 48, 51

Simpson's Paradox 68, 69

Chapter 3. Producing Data

Designing Samples 1, 3

Simple Random Digits 5

Stratified and multistage Sampling, 9

Surveys 11

Section 3.1. 15, 21,

Designing Experiments 27, 31, 36, 44, 48, 60

Chapter 4. Sampling Distributions and Probability

Section 4.1 1, 3, 8

Section 4.3 43, 45, 49,

Section 4.5 73, 75, 79

Chapter 5. Introduction to Inference

Section 5.1 1, 3, 5, 8, 9, 11, 13

Section 5.2 27, 29, 31, 33, 35, 39, 41, 45

Chapter 6. Inference for Distributions

Inference for Population Means (t-dist) 1, 3, 4, 5, 7, 13, 16, 19

Comparison of two 31, 35

Chapter 8. Chi-Square

Two way tables & Chi-Square Test 1, 3