Business Statistics

1.6 Prospective buyers in this housing communal could select either
The “ruby” or the “diamond” home model plan and could have a home built on either a lake lot
or a treed lot (with no water access)
1.13
Sample size=100
The sample mean, =5. 46
Sample Standard deviation =0.43
Since the population standard deviation is unknown and the sample mean is less than 6, we will
use t-distribution.
At 90% confidence interval.
The limits or the intervals are given by;
5.46+ 0.678(0.43/10)≤µ≤5.46-0.678(0.43/10)
(5.49, 5.43)
Proportion
65/100=0.65 or 65%
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1.18
`Personal computer operating system, Level of education Rankingsofthetop10college
football teams, Elementary Middle school High school College Graduate school 1 2 3 4 5 6 7 8 9
10, AMEX NYSE NASDAQ Other 45056 90015, etc. are ordinal qualitative statistics because
they can be ordered, a measurement scale can be attached to them besides them being counted.
Motion picture classifications traded Zip code Categories DOS Windows XP Windows
Vista Windows 7 G PG PG-13 R NC-17 X are nominative since the statistics can be assigned a
code by numbering, they can be counted but cannot be ordered.
2.67
Company
Country of Origin
Frequency
Acura
Audi
BMW
Buick
Cadillac
Chevrolet
Chrysler
Dodge
Ford
GMC
Honda
Hyundai
Infiniti
Jaguar
Jeep
Kia
Land Rover
Lexus
Lincoln
Mazda
Mercedes
Mercury
MINI Great
Mitsubishi
Nissan
Porsche
Ram
Scion
Subaru
Suzuki
Toyota
Japan
Germany
Germany
United States
United States
United States
United States
United States
United States
United States
Japan
Korea
Japan
Great Britain
United States
Korea
Great Britain
Japan
United States
Japan
Benz Germany
United States
Great Britain
Japan
Japan
Germany
United States
Japan
Japan
Japan
Japan
4
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
2
5
3
3
5
3
3
2
3
4
3
3
3
3
3
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Volkswagen
Volvo
Germany
Sweden
2
3
The frequency distribution forms a normal distribution.
2.71
Among The
Best
Better Than
Most
The Rest
Total
United States
0
0
1
11
Pacific Rim
1
1
2
13
Europe
1
1
3
9
Total
2
2
6
33
Most of the countries manufacture about average mechanical quality, and Pacific Rim produces
most of the autos.
2.83
The figure is misleading since the actual number of the trucks is not indicated in the bar graph.
This is because, large numbers of trucks will show high value on the bar graph, the average was
to be used in this case.Besides that, the cost is estimated in percentage bringing in the possibility
of making standard errors in the presentation of the figure.
3.55
The salaries for the people in marketing range from $75k to $250k with the average wage being
at $150k.in this group the majority of employees earn between $100k to $225k.while the
employees in the research earn between $50k to 175k with their average salary set at $100k.the
majority of staff here make between $75k to $125k.
3.59
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age salary
53
145
43
621
33
262
45
208
46
362
55
424
41
339
55
736
36
291
45
58
55
498
50
643
49
390
47
332
69
750
51
368
48
659
62
234
45
396
37
300
50
343
50
536
50
543
58
217
53
298
57
1103
53
406
61
254
47
862
47
*
56
204
44
206
46
250
58
21
48
298
38
350
74
800
60
726
32
370
51
536
50
291
40
808
61
543
63
149
56
350
45
242
61
198
70
213
59
296
57
317
69
482
44
155
56
802
50
200
56
282
43
573
48
388
52
250
62
396
48
572

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