The shape of the distribution of the time required to get an oil change at a 15 minute facility is unknown. However, records indicate that the mean time is 16.1 minutes and the standard deviation is 4.6 minutes.

a. To compute the probabilities regarding the sample mean using the normal model, what size sample would be required?
b. What is the probability that a random sample of n = 40 oil changes results in a sample mean time of less than 15 minutes?

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

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the answer is  

a.

28 ft2

step-by-step explanation:

i think it will be 4feet long of what i comprehend