Homework week 4

Problem 6.17 – the data are given the file rigidity.

Measurements on 50 varieties of timer are made on their rigidity, elasticity, and air-dried density. The objective is to predict rigidity as a function of elasticity and air-dried density . Pay careful attention to the case diagnostics.

Problem 6.20 – the data are given in the file vocabulary.

1. obtain a scatter plot of the information
2. the objective is to predict vocabulary as a function of age. Check for outliers and pay careful attention to the case diagnostics.

Problem 7.5 – the data are given in the file rainseeding.

Investigate appropriate models that relate to the amount of rainfall to explanatory variables. Use model selection procedures.

Problem 7.6 – the data are given the file crimerate.

Use model selection procedures (all possible regressions and stepwise regression) to adequate models that relate the crime rate to the explanatory variables. Check for outliers.

Price: $23.57

Solution: The downloadable solution consists of 16 pages, 757 words and 20 charts.
Deliverable: Word Document