the operator of the local mall wants to find ...
the operator of the local mall wants to find out how many of the malls employees make purchases in the food court when they are working. she hopes to use these data to increase the rent and attract new food vendors. in total, there are 1023 employees who work at the mall. the best method to obtain a random sample of the employees would be to survey\n○ all 170 employees at each of the larger stores\n○ 50% of the 90 employees of the food court\n○ every employee\n○ every 30th employee entering each mall entrance for one week
Answer
# Brief Explanations:
A random sample should represent the entire population without bias. Surveying all employees at larger stores only focuses on one subset, surveying food - court employees only focuses on the food - court, and surveying every employee is a census, not a sample. Selecting every 30th employee entering each mall entrance for a week spreads the selection across the entire population of mall employees in a systematic and random - like way.
# Answer:
every 30th employee entering each mall entrance for one week