Use the sample of the greenhouse gas emissions of 32 different cars. (The amounts are in tons per year, expressed as CO2 equivalents.) Use a 0.05 significance level to test the claim that all cars have a mean greenhouse gas emission of 8.00 tons. Find the statistic, p-value and the critical value (or values). (I  can ask for the satistic ,p value and critical value separately if needed) Data: Car GHG Acura RL 8.7 Acura TSX 7.2 Audi A6 7.7 BMW 525i 7.7 Buick LaCrosse 7.9 Cadillac STS 8.7 Chevrolet Impala 8.2 Chevrolet Malibu 6.8 Chrysler 300 9.3 Dodge Charger 9.3 Dodge Stratus 7.4 Ford Crown Victoria 9.3 Ford Focus 6.5 Honda Accord 6.6 Hyundai Elantra 6.7 Infiniti M35 9 Jaguar XJ8 8.6 Kia Amanti 9.3 Kia Spectra 6.5 Lexus GS300 7.4 Lexus LS 8.7 Lincoln Town Car 9.3 Mazda 3 6.5 Mercedes-Benz E 7 Mercury Grand Marquis 9.3 Nissan Altima 7.1 Pontiac G6 7.2 Saturn Ion 6.7 Toyota Avalon 7.2 Toyota Corolla 5.5 Volkswagon Passat 7.3 Volvo S80 8.2

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Use the sample of the greenhouse gas emissions of 32 different cars. (The amounts are in tons per year, expressed as CO2 equivalents.) Use a 0.05 significance level to test the claim that all cars have a mean greenhouse gas emission of 8.00 tons. Find the statistic, p-value and the critical value (or values).

(I  can ask for the satistic ,p value and critical value separately if needed)

Data:

Car GHG
Acura RL 8.7
Acura TSX 7.2
Audi A6 7.7
BMW 525i 7.7
Buick LaCrosse 7.9
Cadillac STS 8.7
Chevrolet Impala 8.2
Chevrolet Malibu 6.8
Chrysler 300 9.3
Dodge Charger 9.3
Dodge Stratus 7.4
Ford Crown Victoria 9.3
Ford Focus 6.5
Honda Accord 6.6
Hyundai Elantra 6.7
Infiniti M35 9
Jaguar XJ8 8.6
Kia Amanti 9.3
Kia Spectra 6.5
Lexus GS300 7.4
Lexus LS 8.7
Lincoln Town Car 9.3
Mazda 3 6.5
Mercedes-Benz E 7
Mercury Grand Marquis 9.3
Nissan Altima 7.1
Pontiac G6 7.2
Saturn Ion 6.7
Toyota Avalon 7.2
Toyota Corolla 5.5
Volkswagon Passat 7.3
Volvo S80 8.2
A
J
K
1
Car
GHG
Acura RL
8.7
3
Acura TSX
7.2
Greenhouse emissions
Null hypothesis
Alternative hypothesis
4
Audi A6
7.7
BMW 525i
7.7
Significance level
6
Buick LaCrosse
7.9
7
Cadillac STS
8.7
Sample mean
8
Chevrolet Impala
8.2
t-statistic
Chevrolet Malibu
Critical value (or values)
9
6.8
10
Chrysler 300
9.3
p-value
11
Dodge Charger
9.3
Conclusion
12
Dodge Stratus
7.4
Ford Crown Vict
13
9.3
14
Ford Focus
6.5
Show any intermediate calculations around here
15
Honda Accord
6.6
16
Hyundai Elantra
6.7
17
Infiniti M35
18
Jaguar XJ8
8.6
19
Kia Amanti
9.3
20
Kia Spectra
6.5
21
Lexus GS300
7.4
22
Lexus LS
8.7
23
Lincoln Town Ca
9.3
24
Mazda 3
6.5
25
Mercedes-Benz
Mercury Grand
26
9.3
27
Nissan Altima
7.1
28
Pontiac G6
7.2
29
Saturn lon
6.7
30
Toyota Avalon
7.2
31
Toyota Corolla
5.5
Volkswagon Pas
32
7.3
33
Volvo S80
8.2
34
35
Transcribed Image Text:A J K 1 Car GHG Acura RL 8.7 3 Acura TSX 7.2 Greenhouse emissions Null hypothesis Alternative hypothesis 4 Audi A6 7.7 BMW 525i 7.7 Significance level 6 Buick LaCrosse 7.9 7 Cadillac STS 8.7 Sample mean 8 Chevrolet Impala 8.2 t-statistic Chevrolet Malibu Critical value (or values) 9 6.8 10 Chrysler 300 9.3 p-value 11 Dodge Charger 9.3 Conclusion 12 Dodge Stratus 7.4 Ford Crown Vict 13 9.3 14 Ford Focus 6.5 Show any intermediate calculations around here 15 Honda Accord 6.6 16 Hyundai Elantra 6.7 17 Infiniti M35 18 Jaguar XJ8 8.6 19 Kia Amanti 9.3 20 Kia Spectra 6.5 21 Lexus GS300 7.4 22 Lexus LS 8.7 23 Lincoln Town Ca 9.3 24 Mazda 3 6.5 25 Mercedes-Benz Mercury Grand 26 9.3 27 Nissan Altima 7.1 28 Pontiac G6 7.2 29 Saturn lon 6.7 30 Toyota Avalon 7.2 31 Toyota Corolla 5.5 Volkswagon Pas 32 7.3 33 Volvo S80 8.2 34 35
Expert Solution
Step 1

Given:

Sample size of cars (n) = 32

Hypothesized mean x¯=8

The green house emissions of all the cars in a sample is as follows

8.7
7.2
7.7
7.7
7.9
8.7
8.2
6.8
9.3
9.3
7.4
9.3
6.5
6.6
6.7
9
8.6
9.3
6.5
7.4
8.7
9.3
6.5
7
9.3
7.1
7.2
6.7
7.2
5.5
7.3
8.2

α=0.05

Step 2

Calculating sample mean and standard deviation of GHG

x=8.7+7.2+..................+7.3+8.2      =248.8x2=8.72+7.22+..................+7.32+8.22       =1970.76So, x¯=xn        =248.832        =7.775s=1n-1×x2-n×x¯2    =132-1×1970.76-32×7.7752    =1.082709

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