1 Estimate the number of customers in the sample who order t

1. 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.

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

Solution

1.

Mean = n p = 40*0.48 = 19.2 [answer]

2.

Standard deviation = sqrt[n p (1-p)] = sqrt(40*0.48*(1-0.48)) = 3.159746825 [answer]