Assumptions

Question 1

Z Test

Answer 1

1. Independent and Random sampling
2. Quantitative and at least interval level
3. Variable is normally distributed in the population

Question 2

1 sample T test

Answer 2

1. Independent and Random sampling
2. Quantitative and at least interval level
3. Variable is normally distributed in the population

Question 3

Independent samples T -test

Answer 3

1. Independent and Random sampling
2. Quantitative and at least interval level
3. Variable is normally distributed in the population
4. IV is between subjects in nature
   5.Homogeneity of variance

Question 4

Repeated Measures T test

Answer 4

1. Independent and Random sampling
2. Quantitative and at least interval level
3. Mean difference scores are normally distributed in the population

Question 5

Chi Squared Test

Answer 5

1.Independence of observations
2. Frequency is greater than 5.

Question 6

Pearson’s Correlation

Answer 6

1. Both variables quantatitave and interval level or higher.
2. Both X & Y measured on same participant
3. X is between subjects and Y is between subjects in nature.
4. Independent and random sampling.
5. Bivariate normal distribution.
6. Equal variances of Y across all X - homoscedasticity.
7. Linearity.