The z test may be used to determine a. if the sample is ...

[Coya19@aol.com]

The z test may be used to determine
 
  a. if the sample is representative of a known population
  b. if a sample contains bias
  c. the exact amount of sampling error contained in the parameter mean
  d. the amount of sampling error contained in the population's standard
   deviation

Question 2

The z score table always gives, as a direct read-out, the percentage of
  cases falling
 
  a. between a given z score and the mean
  b. below a negative z score
  c. above a positive z score
  d. none of these

[cassie_ragen]

Answer to Question 1

a

Answer to Question 2

a

[Coya19@aol.com]

Excellent

[bdobbins]

Thanks for the timely response, appreciate it