Recently,a Case of Food Poisoning Was Traced to a Particular

question 126

Multiple Choice

Recently,a case of food poisoning was traced to a particular restaurant chain.The source was identified and corrective actions were taken to make sure that the food poisoning would not reoccur.Despite the response from the restaurant chain,many consumers refused to visit the restaurant for some time after the event.A survey was conducted three months after the food poisoning occurred,with a sample of 319 former customers contacted.Of the 319 contacted,29 indicated that they would not go back to the restaurant because of the potential for food poisoning.What sample size would be needed in order to be 99 percent confident that the sample proportion is within .02 of ρ,the true proportion of customers who refuse to go back to the restaurant?

• A) 14
• B) 38
• C) 129
• D) 1,371
• E) 1,777

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Definitions:

Mitosis

The form of cell division in which each chromosome splits lengthwise to double in number. Half of each chromosome combines with chemicals to retake its original form and then moves to the new cell.

Sperm

Male reproductive cells that carry a man's DNA and are necessary for the fertilization of a female's egg.

Ova

The female reproductive cells, or eggs, that when fertilized by male sperm can develop into an embryo.

Sebaceous Glands

Small oil-producing glands located in the skin of mammals that secrete sebum, which lubricates and waterproofs the skin and hair.