Question

As part of a study designed to compare hybrid and similarly equipped conventional vehicles, a group tested a variety of classes of hybrid and all-gas model cars and sport utility vehicles (SUVs). Suppose the following data show the miles-per-gallon rating obtained for two hybrid small cars, two hybrid midsize cars, two hybrid small SUVs, and two hybrid midsize SUVs; also shown are the miles per gallon obtained for eight similarly equipped conventional models.

Class | Type | MPG |
---|---|---|

Small Car | Hybrid | 38 |

Small Car | Conventional | 27 |

Small Car | Hybrid | 45 |

Small Car | Conventional | 31 |

Midsize Car | Hybrid | 26 |

Midsize Car | Conventional | 24 |

Midsize Car | Hybrid | 31 |

Midsize Car | Conventional | 26 |

Small SUV | Hybrid | 27 |

Small SUV | Conventional | 21 |

Small SUV | Hybrid | 28 |

Small SUV | Conventional | 22 |

Midsize SUV | Hybrid | 23 |

Midsize SUV | Conventional | 19 |

Midsize SUV | Hybrid | 24 |

Midsize SUV | Conventional | 18 |

At the α = 0.05 level of significance, test for significant effects due to class, type, and interaction.

a) Find the value of the test statistic for class. (Round your answer to two decimal places.)

Find the *p*-value for class. (Round your answer to three
decimal places.)

*p*-value =

b) Find the value of the test statistic for type. (Round your answer to two decimal places.)

Find the *p*-value for type. (Round your answer to three
decimal places.)

*p*-value =

c) Find the value of the test statistic for interaction between class and type. (Round your answer to two decimal places)

Find the *p*-value for interaction between class and
type. (Round your answer to three decimal places.)

*p*-value =

Answer #1

from excel: data-data analysis: 2 way ANOVA with replication |

Source of Variation |
SS |
df |
MS |
F |
P-value |

class | 441.25 | 3 | 147.08 | 24.01 | 0.000 |

type | 182.25 | 1 | 182.25 | 29.76 | 0.001 |

Interaction | 47.25 | 3 | 15.75 | 2.57 | 0.127 |

Within | 49 | 8 | 6.13 | ||

Total | 719.75 | 15 |

a)

value of the test statistic for class =24.01

*p*-value for class =0.000

b)

value of the test statistic for type =29.76

*p*-value for type =0.001

c)

value of the test statistic for interaction =2.57

*p*-value for interaction between class and type
=0.127

As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, a group tested a variety of classes
of hybrid and all-gas model cars and sport utility vehicles (SUVs).
Suppose the following data show the miles-per-gallon rating
obtained for two hybrid small cars, two hybrid midsize cars, two
hybrid small SUVs, and two hybrid midsize SUVs; also shown are the
miles per gallon obtained for eight similarly equipped conventional
models.
Class
Type
MPG
Small Car
Hybrid
37...

As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, a group tested a variety of classes
of hybrid and all-gas model cars and sport utility vehicles (SUVs).
Suppose the following data show the miles-per-gallon rating
obtained for two hybrid small cars, two hybrid midsize cars, two
hybrid small SUVs, and two hybrid midsize SUVs; also shown are the
miles per gallon obtained for eight similarly equipped conventional
models.
Class
Type
MPG
Small Car
Hybrid
37...

As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, Consumer Reports tested a
variety of classes of hybrid and all-gas model cars and sport
utility vehicles (SUVs). The following data show the
miles-per-gallon rating Consumer Reports obtained for two
hybrid small cars, two hybrid midsize cars, two hybrid small SUVs,
and two hybrid midsize SUVs; also shown are the miles per gallon
obtained for eight similarly equipped conventional models.
Make/Model
Class
Type
MPG
Honda Civic...

As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, a variety of classes of hybrid and
all-gas model cars and sport utility vehicles (SUVs) were tested.
The data showing the miles-per-gallon rating study obtained for two
hybrid small cars, two hybrid midsize cars, two hybrid small SUVs,
two hybrid midsize SUVs, and eight similarly equipped conventional
models are contained in the Excel Online file below. Construct a
spreadsheet to answer the following questions.
a. At...

As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, Consumer Reports tested a
variety of classes of hybrid and all-gas model cars and sport
utility vehicles (SUVs) were tested. The following data show the
miles-per-gallon rating Consumer Reports obtained for two
hybrid small cars, two hybrid midsize cars, two hybrid small SUVs,
and two hybrid midsize SUVs; also shown are the miles per gallon
obtained for eight similarly equipped conventional models.
Make/Model
Class
Type
MPG...

You may need to use the appropriate technology to answer this
question.
As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, Consumer Reports tested a
variety of classes of hybrid and all-gas model cars and sport
utility vehicles (SUVs). The following data show the
miles-per-gallon rating Consumer Reports obtained for two
hybrid small cars, two hybrid midsize cars, two hybrid small SUVs,
and two hybrid midsize SUVs; also shown are the miles per gallon
obtained...

You may need to use the appropriate technology to answer this
question.
As part of a study designed to compare hybrid and similarly
equipped conventional vehicles, Consumer Reports tested a
variety of classes of hybrid and all-gas model cars and sport
utility vehicles (SUVs). The following data show the
miles-per-gallon rating Consumer Reports obtained for two
hybrid small cars, two hybrid midsize cars, two hybrid small SUVs,
and two hybrid midsize SUVs; also shown are the miles per gallon
obtained...

In a certain year, 44.7% of all light vehicles were cars, and
the rest were pickups or SUVs. The probability that a severe
side-impact crash would prove deadly to a driver depended on the
type of vehicle he or she was driving at the time, as shown in the
table. What is the probability that the victim of a deadly
side-impact accident was driving a car? (Round your answer to four
decimal places.)
Car
1.0
Light Truck
or SUV
.2

A factorial experiment was designed to test for any significant
differences in the time needed to perform English to foreign
language translations with two computerized language translators.
Because the type of language translated was also considered a
significant factor, translations were made with both systems for
three different languages: Spanish, French, and German. Use the
following data for translation time in hours.
Language
Spanish
French
German
System 1
8
10
12
12
14
16
System 2
6
14
16
10...

It is a common belief that SUVs are safer than cars. In a
collision, does an SUV sustain less damage (cost of repair) than a
car?
SUV into Car
SUV Damage ($)
Car Damage ($)
Honda CR-V into Honda Civic
$1,721
$1,274
Toyota RAV4 into Toyota Corolla
$1,434
$2,327
Hyundai Tuscon into Kia Forte
$850
$3,223
Volkswagon Tiguan into Volkswagon Golf
$2,329
$2,058
Jeep Patriot into Dodge Caliber
$1,415
$3,095
Ford Escape into Ford Focus
$1,470
$3,386
Nissan Rogue into...

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