Determine the type of bias involved.

Question

A pool store owner wants to determine the effect of algaecide brands on the treatment of pool water with algae. He contacted 250 customers who had purchased algaecide from him. There were negative responses for Brand C. Both customers who had used brand C reported poor results.

Answer 1

The bias involved in this situation is likely selection bias or sampling bias.

Here's why: The pool store owner is contacting only customers who have purchased algaecide from him, which may not represent the broader pool of customers who use different brands or those who have had varying experiences with the products. Additionally, the fact that both customers who used Brand C reported poor results could be due to an unrepresentative sample size for that particular brand. Hence, drawing conclusions based on just these two responses from a small group may not accurately reflect the true effectiveness of Brand C compared to other algaecides.

In general, relying on a small sample or a non-random sample can lead to misleading conclusions, which is characteristic of selection or sampling bias.

Answer 2

The answer choices are voluntary response, social acceptability, non response or self-interest.

Answer 3

Given the answer choices provided, the type of bias involved in the pool store owner's situation is best characterized as voluntary response bias.

Explanation:

• Voluntary response bias occurs when individuals choose to respond to a survey or feedback system based on their own motivation. In this case, the pool owner has only contacted customers who have purchased algaecide, and since the two customers who reported negative results for Brand C did so voluntarily, their poor feedback might not represent the broader customer base or the actual performance of Brand C.

While the negative responses from just two customers limit the reliability of the feedback regarding Brand C, the voluntary nature of their responses makes this case a clear example of voluntary response bias.

Answer 4

incorrect

Answer 5

I apologize for the oversight. Given your answer choices (voluntary response, social acceptability, non-response, or self-interest), the bias most relevant in this scenario would be self-interest.

Explanation:

• Self-interest bias can occur when individuals may provide feedback based on their personal interests or motivations. In this case, the pool store owner has a vested interest in the success of brands other than Brand C, as it may affect future sales or customer perceptions. Customers may also have personal biases based on their experiences or perceptions of the brands relative to their interests.

The customers who used Brand C might provide negative responses which could be skewed by their personal dissatisfaction, or the owner’s query may indirectly encourage customers to respond in a way that reflects their desire to have purchased a different brand or to support products that the store promotes more heavily.

Thank you for your patience, and I hope this clarifies the bias in this context.

Answer 6

thats still wrong

Answer 7

I apologize for the confusion in my previous responses. Given the options you've provided—voluntary response, social acceptability, non-response, or self-interest—the best answer in this context is non-response bias.

Explanation:

• Non-response bias occurs when individuals selected for a survey or study do not respond, and their lack of response differs significantly from those who do respond. In this case, since the pool store owner reached out to customers who had purchased algaecide, it is likely that many customers who might have had different experiences (both positive and negative) did not respond. The two negative responses from Brand C could indicate a lack of comprehensive feedback regarding that brand, reflecting just a tiny segment of experiences rather than the larger customer base.

Thank you for your understanding, and I appreciate your patience as we clarify this concept.