The presence of an interviewer typically decreases the response ...

[kodithompson]

The presence of an interviewer typically decreases the response rate over what typically happens in a mail survey.
 
 Indicate whether the statement is true or false

Question 2

The t-test for comparing the means of two groups assumes that the data are in nominal scales.
 
 Indicate whether the statement is true or false

[Hdosisshsbshs]

Answer to Question 1

F
It typically increases the response rate over what typically happens in a mail survey.

Answer to Question 2

F
It tests a dichotomous (two-level) independent variable associated with changes in a continuous dependent variable.

[kodithompson]

Thank you

[Hdosisshsbshs]

No problemo