The answers can be found in the corresponding download file (right column)

Week 1

Preparatory assignment 1.0

Theory

1. What symbols are used for the population mean and the sample mean?

2. What is the difference between the H₀ and the H_a?

3. What is the definition of a p-value?

4. What is the definition of the rejection criterion α?

Application

Select the correct response(s). (More than one may be correct.) The p-value for testing H₀ : µ = 100 against H_a : µ is not 100 is p = .001. This indicates that:

1. There is strong evidence that µ = 100.

2. There is strong evidence that µ is not 100.

3. There is strong evidence that µ > 100.

4. There is strong evidence that µ < 100.

5. If µ were equal to 100, it would be unusual to obtain data such as those observed.

Workgroup tips

It is important that you understand the difference between a sample and a population, and that you understand the difference between the symbols for them. A sample is the one test result set that a research or investigation delivers, or one group of people from one specific experiment, while a population is an overview of anybody who fits to the requirements. Below is a table of different symbols for the two different situations.

Week 2

Preparatory assignment 2.0

Theory

1. What is meant by events A and B being independent?

2. What is meant by events A and B being disjoint?

3. Can disjoint events be independent from each other?

4. What are the formulas for the:

   1. General additive rule

   2. Additive rule for disjoint events

   3. Complement rule

   4. General multiplicative rule

   5. Multiplicative rule for independent events