4. Find a 99% confidence interval for the true proportion of cars that have V-shaped engines. Draw the flowchart of clouds in interval estimation. Interpret the result.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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4. Find a 99% confidence interval for the true proportion of cars that have V-shaped engines. Draw the flowchart of clouds in interval estimation. Interpret the result.
Car
Mazda RX4
Mazda RX4 Wag
Datsun 710
Hornet 4 Drive
Hornet Sportabout
Chrysler Valiant
Duster 360
Merc 240D
Merc 230
Merc 280
Merc 280C
Merc 450SE
Merc 450SL
Merc 450SLC
Cadillac Fleetwood
Lincoln Continental
Chrysler Imperial
Fiat 128
Honda Civic
Toyota Corolla
Toyota Corona
Dodge Challenger
AMC Javelin
Camaro Z28
Pontiac Firebird
Fiat X1-9
Porsche 914-2
Lotus Europa
Ford Pantera L
Ferrari Dino
Maserati Bora
Volvo 142E
mpg
21
21
22.8
21.4
18.7
18.1
14.3
24.4
22.8
19.2
17.8
16.4
17.3
15.2
10.4
10.4
14.7
32.4
30.4
33.9
21.5
15.5
15.2
13.3
19.2
27.3
26
30.4
15.8
19.7
15
21.4
cyl
6
6
disp
4
6
8
6
8
4
4
6
6
8
8
8
8
8
8
4
4
4
4
8
8
8
8
4
4
4
8
6
8
4
160
160
108
258
360
225
360
146.7
140.8
167.6
167.6
275.8
275.8
275.8
472
460
440
78.7
75.7
71.1
120.1
318
304
350
400
79
120.3
95.1
351
145
301
121
hp
110
110
93
110
175
105
245
62
95
123
123
180
180
180
205
215
230
66
52
65
97
150
150
245
175
66
91
113
264
175
335
109
drat
3.9
3.9
3.85
3.08
3.15
2.76
3.21
3.69
3.92
3.92
3.92
3.07
3.07
3.07
2.93
3
3.23
4.08
4.93
4.22
3.7
2.76
3.15
3.73
3.08
4.08
4.43
3.77
4.22
3.62
3.54
4.11
wt
2.62
2.875
2.32
3.215
3.44
3.46
3.57
3.19
3.15
3.44
3.44
4.07
3.73
3.78
5.25
5.424
5.345
2.2
1.615
1.835
2.465
3.52
3.435
3.84
3.845
1.935
2.14
1.513
3.17
2.77
3.57
2.78
qsec
16.46
17.02
18.61
19.44
17.02
20.22
15.84
20
22.9
18.3
18.9
17.4
17.6
18
17.98
17.82
17.42
19.47
18.52
19.9
20.01
16.87
17.3
15.41
17.05
18.9
16.7
16.9
14.5
15.5
14.6
18.6
VS
0
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
0
1
0
0
0
1
am
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
1
1
1
1
1
1
1
gear
4
4
4
3
3
3
3
4
4
4
4
3
3
3
3
3
3
4
4
4
3
3
3
3
3
4
5
5
5
5
5
4
carb
maker
4 Japan
4 Japan
1 Japan
1 USA
2 USA
1 USA
4 USA
2 German
2 German
4 German
4 German
3 German
3 German
3 German
4 USA
4 USA
4 USA
1 Italy
2 Japan
1 Japan
1 Japan
2 USA
2 USA
4 USA
2 USA
1 Italy
2 German
2 UK
4 USA
6 Italy
8 Italy
2 Sweden
Transcribed Image Text:Car Mazda RX4 Mazda RX4 Wag Datsun 710 Hornet 4 Drive Hornet Sportabout Chrysler Valiant Duster 360 Merc 240D Merc 230 Merc 280 Merc 280C Merc 450SE Merc 450SL Merc 450SLC Cadillac Fleetwood Lincoln Continental Chrysler Imperial Fiat 128 Honda Civic Toyota Corolla Toyota Corona Dodge Challenger AMC Javelin Camaro Z28 Pontiac Firebird Fiat X1-9 Porsche 914-2 Lotus Europa Ford Pantera L Ferrari Dino Maserati Bora Volvo 142E mpg 21 21 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 17.8 16.4 17.3 15.2 10.4 10.4 14.7 32.4 30.4 33.9 21.5 15.5 15.2 13.3 19.2 27.3 26 30.4 15.8 19.7 15 21.4 cyl 6 6 disp 4 6 8 6 8 4 4 6 6 8 8 8 8 8 8 4 4 4 4 8 8 8 8 4 4 4 8 6 8 4 160 160 108 258 360 225 360 146.7 140.8 167.6 167.6 275.8 275.8 275.8 472 460 440 78.7 75.7 71.1 120.1 318 304 350 400 79 120.3 95.1 351 145 301 121 hp 110 110 93 110 175 105 245 62 95 123 123 180 180 180 205 215 230 66 52 65 97 150 150 245 175 66 91 113 264 175 335 109 drat 3.9 3.9 3.85 3.08 3.15 2.76 3.21 3.69 3.92 3.92 3.92 3.07 3.07 3.07 2.93 3 3.23 4.08 4.93 4.22 3.7 2.76 3.15 3.73 3.08 4.08 4.43 3.77 4.22 3.62 3.54 4.11 wt 2.62 2.875 2.32 3.215 3.44 3.46 3.57 3.19 3.15 3.44 3.44 4.07 3.73 3.78 5.25 5.424 5.345 2.2 1.615 1.835 2.465 3.52 3.435 3.84 3.845 1.935 2.14 1.513 3.17 2.77 3.57 2.78 qsec 16.46 17.02 18.61 19.44 17.02 20.22 15.84 20 22.9 18.3 18.9 17.4 17.6 18 17.98 17.82 17.42 19.47 18.52 19.9 20.01 16.87 17.3 15.41 17.05 18.9 16.7 16.9 14.5 15.5 14.6 18.6 VS 0 0 1 1 0 1 0 1 1 1 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 0 1 0 0 0 1 am 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 gear 4 4 4 3 3 3 3 4 4 4 4 3 3 3 3 3 3 4 4 4 3 3 3 3 3 4 5 5 5 5 5 4 carb maker 4 Japan 4 Japan 1 Japan 1 USA 2 USA 1 USA 4 USA 2 German 2 German 4 German 4 German 3 German 3 German 3 German 4 USA 4 USA 4 USA 1 Italy 2 Japan 1 Japan 1 Japan 2 USA 2 USA 4 USA 2 USA 1 Italy 2 German 2 UK 4 USA 6 Italy 8 Italy 2 Sweden
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