Anita\'s, a fast-food chain specializing in hot dogs and garlic fries, keeps tra

Question

Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go") so it can make decisions regarding the possible construction of in-store play areas, the attendance of its mascot Sammy at the franchise locations, and so on. Anita's reports that

48%

of its customers order their food to go. Suppose that this proportion is correct and that a random sample of

50

individual customers is taken.

Estimate the number of customers in the sample who order their food to go by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.

Quantify the uncertainty of your estimate by giving the standard deviation of the distribution. Round your response to at least three decimal places.

(If necessary, consult a list of formulas.)

Explanation / Answer

ere for binomial distribution parameter p=0.48 and n=50

1)estimated number of customers in the sample who order their food to go=np=50*0.48=24

2)

standard deviation of the distribution =sqrt(np(1-p))=sqrt(50*0.48*0.52)=3.5327

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