Reference no: EM132342742

Generally speaking, people are pretty bad at telling whether or not someone is lying. Researchers are interested in studying if age is associated with ability to tell if someone is lying. Researchers compare a group of children (ages 8-10), adolescents (ages 14-17), and adults (ages 25-45) on their ability to tell if a person in a recorded video is lying or telling the truth.

1.) What is the null hypothesis for scenario 4?

a.) HO: µposttest = µpretest

b.) H0: X = µ

c.) HO: µ1 = µ2 =µ3

d.) r = 0

2.) What is the independent variable for scenario 4?

a.) the participants

b.) There is no independent variable in this study

c.) age group (children vs adolescents vs adults)

d.) how much children can tell if you are lying

e.) ability to detect lies

3.) What is the dependent variable for scenario 4?

a.) ability to detect lies

b.) how much children can tell if you are lying

c.) the participants

d.) age group (children vs adolescents vs adults)

e.) There is no dependent variable in this study

4.) What is the most appropriate test statistic to use to test the hypothesis in scenario 4?

a.) dependent samples t test

b.) z-score

c.) independent samples t-test

d.) z-test

e.) one way ANOVA

f.) regression

g.) correlation coefficient