A survey of 116 law firms in a country found that the average hourly billing rate for partners was $578. a. all people in the country.
b. the law firms that were surveyed.
c. all partners.
d. all law firms in the country.

Complete Question

The  complete question is shown on the first uploaded image

a

  The  correct option is  d

b

The  correct option is  b

Step-by-step explanation:

From the question we are told that

   The  sample  size is  

    The  mean is  

Generally the population is all law firms in the country because it is the entire pool from which a statistical sample is drawn

  The  sample are the law firm that where surveyed because it is the  statistical sample is drawn from the population

true

step-by-step explanation: