Hypothesis Test 2:

Do airport car rental agencies charge lower rates, on average, in San Francisco than in San Jose?

Conduct a test of this question with a 3% level of significance.

.

The table shows weekly car rental rates

in San Francisco and San Jose for a sample of rental companies and car types.

For each company/car size combination in the sample, the rates are shown for both cities.

The sample rates in the table were quoted

on Travel: Airfares, hotels, vacations, cruises, car rentals and more at Travelocity.com on 11/27/2007

for rentals at airport rental outlets

for the week 12/1–12/8/2007.

We will use this data as a sample of the population of all models of cars available for rent from all airport car rental agencies in San Francisco and San Jose.

Using a 3% level of significance, perform a hypothesis test to determine if airport car rental agencies charge lower rates, on average, in San Francisco than in San Jose.

Company

Car Size

San FranciscoSan Jose

Alamo

economy

238257

Avis

economy

258277

Budget

economy

238257

Dollar

economy

99170

Enterprise

compact

88172

Hertz

compact

267278

National

compact

257268

Thrifty

compact

99172

Alamo

mid

261281

Dollar

mid

95173

Hertz

mid

281301

Budget

mid

261281

Avis

full

317321

Enterprise

full

105174

National

full

307312

Thrifty

full

109.174

Answer the following questions. Your answers must be typed out in between each question.

1. Identify and define the parameter.

-µsf-µsj

2. Identify and define the random variable.

- x bar sf- x bar sj

3. What distribution will you use? Explain why.

4. Circle the correct type of test: Two-tailed Right-TailedLeft-Tailed

5. Write the hypotheses:

Ho: __µsf≥µsj_______________________ Ha: ____µsf<µsj_________________________

6. What calculator software instruction will you use after STAT – TEST? ______________________________

7. Identify the symbol and value of your test-statistic: ______________________________

8. Find the p-value: ______________________________

9. Write a sentence that clearly explains the meaning of the p-value in the context of this problem.

i'm really clueless

please help

pleaseeeee.