The Read and Feed restaurant wants to know how satisfied their customers are with their service. They printed an internet link to a survey on every receipt, and 150 of their customers chose to answer the survey. The data showed that 60% of the customers were satisfied with their service. Based on this data, which of the following conclusions are valid? Choose 1 answer: A 60% of customers in this sample are satisfied, but we cannot conclude anything about the population. (B) About 60% of all Read and Feed customers are satisfied. (C) About 60% of all Read and Feed customers who have internet access are satisfied.

Question

The Read and Feed restaurant wants to know how satisfied their customers are with their service. They printed an internet link to a survey on every receipt, and 150 of their customers chose to answer the survey. The data showed that  60% of the customers were satisfied with their service. Based on this data, which of the following conclusions are valid? Choose 1 answer: A  60% of customers in this sample are satisfied, but we cannot conclude anything about the population. (B) About  60% of all Read and Feed customers are satisfied. (C) About  60% of all Read and Feed customers who have internet access are satisfied.

Bytelearn · Accepted Answer

Calculate percentage of satisfied customers: Calculate the percentage of customers who were satisfied based on the survey: 150 customers answered the survey, and 60% were satisfied. So, 0.60 * 150 = 90 customers were satisfied.Analyze sample representativeness: Analyze the representativeness of the sample: The survey was taken by customers who chose to respond to an internet link on their receipt. This is a voluntary response sample and may not be representative of the entire customer base.Evaluate conclusions: Evaluate the conclusions:  A) This conclusion is valid because it only speaks about the sample that was surveyed. It does not make assumptions about the entire population of customers. B) This conclusion is not valid because we cannot assume that the sample is representative of the entire population of customers. C) This conclusion is also not valid because it assumes that all customers have internet access and that the sample is representative of those customers.

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