## Exercises

Tuesdays 10:15-11:00 in F2 or in computer lab Fraggle (see below). The weekly exercise announcement will tell you where to go.

## Computer lab

The computer lab Fraggle, Høgskoleringen 3 (H3), room 524, is reserved for the course on Tuesdays 10:15 - 12:00.

### Messages

**04.05.2015**

There was a mistake in the solution to the last exercise in point 3b. The solution has now been updated.

**12.02.2015**

Some of you have discovered that the MINITAB-macro for Nelson-plot does not handle "ties" in failure times, i.e., the case where several units fail at the same time. In fact, the macro is "home made" and is a bit primitive. It is constructed under the assumption that all failure times are different. The trick to overcome this is to create small differences between equal observations, for example use 96.0 and 96.1 in the case where there are two failure observations at 96.0. This will not give exactly the same answer as if you use "di/ni" as in the correct formula, but gives the most correct answer using the existing macro.

**11.12.2014**

The first exercise will be on 13^{th}of January 2015 in F2.

### Obligatory exercises

There are two obligatory exercise sets that will be graded, each counting 10% of the final grade in the course.

* *Obligatory I.* Out: February 6, Deadline: February 20. Obligatory I may be downloaded
here.

* *Obligatory II.* Out: March 6, Deadline: March 20. Obligatory II may be downloaded
here.

### Weekly exercises

# | Date & Place | Problems | Solution | |
---|---|---|---|---|

1 | 13.01, F2 | |||

2 | 20.01, F2 | |||

3 | 27.01, Fraggle | |||

4 | 03.02, Fraggle | |||

10.02, Fraggle | Guidance Oblig I | Results_obl1 | ||

17.02, Fraggle | Guidance Oblig I | |||

5 | 24.02, Fraggle | pdf,Solution For 4,Utregninger | ||

6 | 03.03, Fraggle | |||

10.03, Fraggle | Guidance Oblig II | Results_obl2 | ||

17.03, Fraggle | Guidance Oblig II | |||

7 | 24.03, Fraggle | |||

8 | 14.04, Fraggle | Exam June 2005, Problems 1 and 2 |