chapter 12 - one sample t tests

Question 1

when is a one sample t test used?

Answer 1

comparing the population mean to a particular value

Question 2

what is the key assumption of a one sample t test?

Answer 2

the variable is normally distributed in the population

Question 3

assumptions of the one sample t test

Answer 3

1. Independence
2. Measurement scale - interval or ratio
3. Normality

Question 4

how to calculate degrees of freedom

Answer 4

n-1

n = number of observations in the sample

Question 5

the greater the degrees of freedom…

Answer 5

the more likely it is to detect if an effect is present