Two major sources of survey error are random sampling error and ...

[kwoodring]

Two major sources of survey error are random sampling error and nonrandom sampling error.
 
 Indicate whether the statement is true or false

Question 2

The z-test is appropriate for interval data when the sample
 a. is of any size and the population standard deviation is known
  b. is small and the population standard deviation is known
  c. is of any size and the sample standard deviation is known
  d. is large and the sample standard deviation is known

[mohan]

Answer to Question 1

F
Two major sources of survey error are random sampling error and systematic error.

Answer to Question 2

A
If the population standard deviation is known, then it does not matter what the sample size is.

[kwoodring]

Gracias!

[Sarahjh]

Thanks for the timely response, appreciate it