STK4900 - Vår 2015

Exercises in STK4900 - Spring 2015

The lectures and exercise classes in STK4900 will take place Monday to Friday over one week in February (16th-20th) and one in April (13th-17th) . There will in these weeks be exercises from 13.15 to 16.00. The exercises will consist of two parts: (i) practical exercises using R on computers ("datalab") and (ii) theoretical exercises using calculator, pen, and paper ("exercises"). The datalab is held at VB, IT-auditorium 1 and the theoretical exercises at NHA, at UE 32. Further details on the organisation of the exercises will be provided at the course.

Below is given a plan for the exercises. The plan wight be updated as the course progresses.

Part 1

Monday February 16:

Practical exercises:

Theoretical exercises:

Exercise 1-3

Here are tables of the standard normal, student t, Fisher F and chi-square distributions.

These may come in handy for todays and later theoretical exerercises as well as for the final exam.

And here is a sketch of the solutions to theoretical Exercises 1-3.

Tuesday February 17:

Practical exercises:

Theoretical exercises:

Exercise 4 (with sketch of solution)
Exam STK 4900 spring 2008: Problem 1

Wednesday February 18

Practical exercises:

Theoretical exercises:

Exam STK4900 spring 2010: Problem 1. (Suggested solution)
Exercise 5 (with sketch of solution)

Thursday February 20:

Practical exercises:

R-exercise 11
R-exercise 12 (R-help )

Theoretical exercises:

Exercise 6 (with sketch of solution)
Exam ST301 spring 1996: problem 2 (in Norwegian)

Friday February 21:

Practical exercise:

R-exercise 13 (R-help )
R-exercise 14 (R-help ). Before you do this exercise, you have to read into R a function that may compute cross-vallidated R2. It is explained here how you should do this.

Theoretical exercises: