Question

The manager of a shopping mall wishes to expand the number of shops available in the food court. She has a market researcher survey the first 110 customers who come into the food court during weekday mornings to determine what types of food the shoppers would like to see added to the food court.

A.) The survey has bias. Determine whether the flaw is due to the sampling method of the survey itself. For biased surveys, identify the cause of the error. What is the cause of the bias?

B.) Which of the following is the best way to remedy this problem?

Answer 1

Explanation:

given that the manager of a shopping mall wishes to expand the number of shops available in the food court. She has a market researcher survey the first 110 customers who come into the food court during weekday mornings to determine what types of food the shoppers would like to see added to the food court.

The survey has bias because she considered only the customers who come during weekday mornings. Other customers who visit at nights and week ends were totally ignored. This would cause a bias.

The flaw would be she might come to wrong decision to expand or not to expand from this survey and may suffer losses. Only full customers should be represented by a sample, this would be accurate. So Large number of customers equally from week ends, or evenings also should be surveyed and consolidated results should be taken.

B) The best remedy is to survey not only week day customers and not the first 110 but random 110 customers. Same sampling should be done for evening and also week ends. The total sample would give an idea