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The manager of a shopping mall wishes to expand the number of shops available in the food court. He has a market researcher survey the first 110 customers who come into the food court during weekend evening in determine what types of food the shoppers would like to see added to the food court.
The manager of a shopping mall wishes to expand the number of shops available in the food court. He has a market researcher survey the first 110 customers who come into the food court during weekend evening in determine what types of food the shoppers would like to see added to the food court. (a) The survey has bias. Determine whether the law is due to the sampling method on the survey itself for based surveys, Identity the cause of the error.
what is the cause of the bias?
A. Response bias
B. nonresponse
C. Sampling bias.
(b) Suggest a remedy to the problem.
Which of the following is the best way to remedy this problem?
A. Increase the sample size so that more people respond to the question
B. Ask customers throughout the day on both weekdays and weekends.
C. Reword the questions so that it is balanced.
Final answer:The bias in the shopping mall survey is due to sampling bias, caused by surveying a non-representative segment of the population. The solution is to survey customers throughout different times and days, not just on weekend evenings. Correct option is C.Explanation:The manager of a shopping mall conducting a survey focused on the first 110 customers during a weekend evening has introduced sampling bias. The cause of this bias is that only a specific segment of the population—those who visit the food court during the weekend evenings—is surveyed, which does not necessarily represent all shoppers' preferences. Other potential customers who may visit during other times are not included, which can skew the results to favor the preferences of weekend evening shoppers.To remedy this problem, a better strategy would be to diversify the sampling times and days. Instead of increasing the sample size (Option A), or rewording the survey questions (Option C), the best way to reduce sampling bias would be toask customers throughout various times on both weekdays and weekends(Option B). This approach would create a more representative sample of the shopping mall's customer base, thus providing more accurate insights into the types of food court shops desired by the overall population of shoppers....