Mathematics homework help
Please do not waste my time if you do not know statistics.
This is part one of the homework. I will attach the file for the full homework.
CARS: A sample of 20 cars, including measurements of fuel consumption (city mi/gal and highway mi/gal), weight (pounds), number of cylinders, engine displacement (in liters), amount of greenhouse gases emitted (in tons/year), and amount of tailpipe emissions of NOx (in lb/yr).Mathematics homework help.
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CAR
CITY
HWY
WEIGHT
CYLINDERS
DISPLACEMENT
MAN/AUTO
GHG
NOX
Chev. Camaro
19
30
3545
6
3.8
M
12
34.4
Chev. Cavalier
23
31
2795
4
2.2
A
10
25.1
Dodge Neon
23
32
2600
4
2
A
10
25.1
Ford Taurus
19
27
3515
6
3
A
12
25.1
Honda Accord
23
30
3245
4
2.3
A
11
25.1
Lincoln Cont.
17
24
3930
8
4.6
A
14
25.1
Mercury Mystique
20
29
3115
6
2.5
A
12
34.4
Mitsubishi Eclipse
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22
33
3235
4
2
M
10
25.1
Olds. Aurora
17
26
3995
8
4
A
13
34.4
Pontiac Grand Am
22
30
3115
4
2.4
A
11
25.1
Toyota Camry
23
32
3240
4
2.2
M
10
25.1
Cadillac DeVille
17
26
4020
8
4.6
A
13
34.4
Chev. Corvette
18
28
3220
8
5.7
M
12
34.4
Chrysler Sebring
19
27
3175
6
2.5
A
12
25.1
Ford Mustang
20
29
3450
6
3.8
M
12
34.4
BMW 3-Series
19
27
3225
6
2.8
A
12
34.4
Ford Crown Victoria
17
24
3985
8
4.6
A
14
25.1
Honda Civic
32
37
2440
4
1.6
M
8
25.1
Mazda Protege
29
34
2500
4
1.6
A
9
25.1
Hyundai Accent
28
37
2290
4
1.5
A
9
34.4
Part I
Generally the first step to analyze a dataset that is given to you is to identify the type of data, and picture the data using graphs etc. Use the data set above to answer the following questions:
1. Assume that the car column represents all car models. Use the random number Table B, to generate a simple random sample of 15 car models from the set above.
2. Classify all the columns: car, city, HWY, weight, cylinders, displacement man/auto GHG NOX according to the following:
i. Categorical or quantitative
ii. Discrete or continuous or none
iii. Levels of measurement: nominal, ordinal, interval or ratio.
3. Make a frequency distribution for MAN/AUTO
4. Make a frequency distribution for DISPLACEMENT. (also include the column for cumulative frequency)
5. Make a bar graph or pie chart for MAN/AUTO.
6. Make a histogram for DISPLACEMENT.
i. Determine the type of skewness- left, right, symmetric or none.
ii. Determine the variability-high or low.
7. Make a stemplot for CITY
i. Determine the type of skewness- left, right, symmetric or none.
ii. Determine the variability-high or low or none.
8. Make a dotplot for CYLINDER.
i. Determine the type of skewness- left, right , symmetric or none.
ii. Determine the variability-high or low, or none.
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