Question

Based on sales over a six-month period, the five top-selling compact cars are Chevy Cruze, Ford Focus, Hyundai Elantra, Honda Civic, and Toyota Corolla.† Based on total sales, the market shares for these five compact cars were Chevy Cruze 24%, Ford Focus 21%, Hyundai Elantra 20%, Honda Civic 18%, and Toyota Corolla 17%. Suppose a sample of 400 compact car sales in one city showed the following number of vehicles sold.

Chevy Cruze | 108 |
---|---|

Ford Focus | 92 |

Hyundai Elantra | 65 |

Honda Civic | 83 |

Toyota Corolla | 52 |

Use a goodness of fit test to determine if the sample data
indicate that the market shares for the five compact cars in this
city are different than the market shares reported by *Motor
Trend*. Use a 0.05 level of significance.

State the null and alternative hypotheses.

*H*_{0}: The market shares for the five
automobiles in this city are 0.24, 0.21, 0.20, 0.18, 0.17.

*H*_{a}: The market shares for the five automobiles
in this city differ from the above shares. CORRECT!!

Find the value of the test statistic. (Round your answer to three decimal places.)

Find the *p*-value. (Round your answer to four decimal
places.)

*p*-value =

Answer #1

Based on sales over a six-month period, the five top-selling
compact cars are Chevy Cruze, Ford Focus, Hyundai Elantra, Honda
Civic, and Toyota Corolla.† Based on total sales, the market shares
for these five compact cars were Chevy Cruze 24%, Ford Focus 21%,
Hyundai Elantra 20%, Honda Civic 18%, and Toyota Corolla 17%.
Suppose a sample of 400 compact car sales in one city showed the
following number of vehicles sold.
Chevy Cruze
109
Ford Focus
92
Hyundai Elantra
65...

The compact car market in the United States is extremely
competitive. Data has been collected on sales for six of the top
models for six months in 2011. It is also believed that the level
of sale often varies a great deal across different months of the
year. At the 0.05 level of significance, test for any significant
difference in the mean number of cars sold per month for the six
models (Hint: Use a randomized block design with no...

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...

Toyota Camry, Honda Accord and Ford F-150 are the top 3
best-selling passenger cars in the U.S for the last 5 years. Data
for 2017 is shown in the table below. Your interest is to determine
whether the shares in the passenger car market have changed in
2018. Use an alpha of 0.01 on your test.
2017 Market Share Observed in
2018
Toyota Camry 0.40 70
Honda Accord 0.20 70
Ford F-150 0.40 60
total 100% 200...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 6 minutes ago

asked 18 minutes ago

asked 25 minutes ago

asked 28 minutes ago

asked 46 minutes ago

asked 48 minutes ago

asked 51 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 3 hours ago

asked 3 hours ago