
Concept explainers
(a)
To Find: the
(a)

Answer to Problem 40E
Mean number of breweries for states east of Mississippi river
Explanation of Solution
Given:
Formula Used:
Calculation:
Mean number of breweries for states east of Mississippi river
Therefore, for states east of Mississippi river, mean number of breweries 29.63.
(b)
To Find: the mean number for states west of Mississippi river.
(b)

Answer to Problem 40E
Mean number of breweries for states west of Mississippi river
Explanation of Solution
Calculation- Mean number of breweries for states west of Mississippi river Mean,
Therefore, for states west of Mississippi river, mean number of breweries
(c)
To Find: the
(c)

Answer to Problem 40E
Median number of breweries for states east of Mississippi river
Explanation of Solution
Calculation-
Median number of breweries for states east of Mississippi river
For median, it is required to first arrange the data in sequential order,
We have,
Median, for even numbers,
Therefore, for states east of Mississippi river, median number of breweries
(d)
To Find: the median number for states west of Mississippi river.
(d)

Answer to Problem 40E
Median number of breweries for states west of Mississippi river
Explanation of Solution
Calculation-
Median number of breweries for states west of Mississippi river
For median, first arrange the data in sequential order,
We have,
Median, for odd numbers,
Therefore, for states west of Mississippi river, median number of breweries
(e)
To Find: Whether one region have a lot more breweries per state than the other.
(e)

Answer to Problem 40E
Yes, west region has a lot more breweries per state than east region.
Explanation of Solution
By looking at the mean number of breweries for states east and west of Mississippi river,
Mean number of breweries for states east of Mississippi river
Mean number of breweries for states west of Mississippi river
So, west region has a lot more breweries per state than east region.
(f)
To Find: the mean and median number for states west of Mississippi river without including California.
(f)

Answer to Problem 40E
Mean number of breweries for rest of states west of Mississippi river
Median number of breweries for rest of states west of Mississippi river
Explanation of Solution
Calculation-
If California is removed from sample of western states, then to find mean and median, the sample of data of western states is to be rearranged.
The new sample of data is,
Mean
Median
Therefore, for rest of states west of Mississippi river, mean number of breweries
(g)
To Find: the number for breweries between eastern and western states without including California.
(g)

Answer to Problem 40E
West region has a greater number of breweries per state than east region.
Explanation of Solution
By looking at the mean number of breweries per state of east region and mean number of breweries per state of west region without including California,
Mean number of breweries for states east of Mississippi river
Mean number of breweries for states west of Mississippi river without including California
So, it suggests that even if California is removed from western region, then also west region has a greater number of breweries per state than east region.
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Chapter 3 Solutions
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