Creek Ratz is a very popular restaurant located along the coast of northern Flor
ID: 3309429 • Letter: C
Question
Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinners. During the summer beach season, they do not take reservations or accept “call ahead” seating. Management of the restaurant is concerned with the time a patron must wait before being seated for dinner. Listed below is the wait time, in minutes, for the 25 tables seated last Saturday night.
28
39
23
67
37
28
56
40
28
50
51
45
44
65
61
27
24
61
34
44
64
25
24
27
29
Explain why the times are a population.
Find the mean and median of the times.
Find the range and the standard deviation of the times.
Additional Data
28
39
23
67
37
28
56
40
28
50
51
45
44
65
61
27
24
61
34
44
64
25
24
27
29
Explanation / Answer
this is population because it it include all data of for the 25 tables seated last Saturday night.
mean = sum of all terms /number of terms = 1021/25 = 40.84
meadian = 39
The median is the middle number in a sorted list of numbers. So, to find the median, we need to place the numbers in value order and find the middle number.
Ordering the data from least to greatest, we get:
23 24 24 25 27 27 28 28 28 29 34 37 39 40 44 44 45 50 51 56 61 61 64 65 67
So, the median is 39 .
range = 44
The range is the difference between the highest and lowest values in the data set.
Ordering the data from least to greatest, we get:
23 24 24 25 27 27 28 28 28 29 34 37 39 40 44 44 45 50 51 56 61 61 64 65 67
The lowest value is 23.
The highest value is 67.
The range = 67 - 23 = 44.
sd = 14.84834
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