Applying Statistical Inference: an Example Marty Studied Whether Tattoos Affect

Multiple Choice

Applying Statistical Inference: An Example Marty studied whether tattoos affect employer perception of job applicant responsibility.Although the independent variable (tattoo) did not really affect employer perceptions, differences in how he treated each treatment group caused him to mistakenly reject the null hypothesis.Marty's decision illustrates

A) confounding by extraneous subject variables.
B) measurement error.
C) Type 1 error.
D) Type 2 error.