Sale of Spinach That Is Contaminated with E Coli Can

question 46

Multiple Choice

Sale of spinach that is contaminated with e coli can cause food poisoning among consumers. A food inspector takes an SRS of 400 bags from all the bags of spinach shipped in one day. The laboratory reports that 19 of these bags had e coli contamination. Unknown to the producer, 1 percent of all bags shipped had e coli.
If the producer took an SRS of 200 bags instead of 400, the new margin of error would be:

• A) the same as before because the population of bags is the same.
• B) smaller than before because the sample is smaller.
• C) larger than before because the sample is smaller.
• D) random in size and could be either larger or smaller than before.
• E) impossible to determine because the size of the sample doesn't control the margin of error.

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