1.7: Sample size determination

Question 1

Limits on sample size:

Answer 1

• Ethical concerns
• Budget constraints
• Time constraints

Question 2

Size of test and power:

Answer 2

• Size of test: alpha value; typically 0.5
• If p < alpha, reject null hypothesis
• Power = 1-beta (FC 2); probability of concluding that the alternative hypothesis is true given that it is, in fact, true
• Beta denotes type II error

Question 3

One-sample Gauss Test (One-sided)

Answer 3

• FC 3