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You are a business analyst at a restaurant management company. The company is exploring whether it...

You are a business analyst at a restaurant management company. The company is exploring whether it makes sense to open a new lokma shop. There are already many such stores in Istanbul​ (Lokmata, Lokmacho, The​ LoQma, etc.) and you need to visit 35 of them for the purpose of market research. From previous​ studies, you know that waiting times at different stores​ vary, with an average of 15 minutes and a standard deviation of 4 minutes

a. Consider the average waiting time for the 35 restaurants you visit. Without computing​ probabilities, determine which of the events below is most​ likely:

A.

average waiting time is between 10 mins and 12 mins.

B.

average waiting time is between 13 mins and 15 mins.

C.

average waiting time is between 15 mins and 17 mins.

D.

average waiting time is between 14 mins and 16 mins.

E.

average waiting time is not​ important, getting your lokma is.

b. There is​ 75% chance that your average waiting time is longer​ than:

A.

14.35

B.

8.35

C.

14.55

D.

15.74

E.

23.55

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