Maurice Tutor

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Expertise:
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 30 Jan 2018 My Price 7.00

Fuel Consumption

15.  Fuel Consumption The standard deviation of the fuel consumption of a certain automobile is hypothesized to be greater than or equal to 4.3 miles per gallon. A sample of 20 automobiles produced a standard deviation of 2.6 miles per gallon. Is the standard deviation really less than previously thought? Use a = 0.05 and the

P-value method.

 16.  Apartment Rental Rates  A real estate agent claims that the standard deviation of the rental rates of

apartments in a certain county is $95. A random sample of rates in dollars is shown. At a = 0.02, can the claim be refuted?

 

9.

Federal Prison Populations  Nationally 60.2% of federal

375

435

495

525

290

460

 

prisoners are serving time for drug offenses. A warden

425

250

200

525

375

390

 
 

400          345          325          395          400          300

 

 

feels that in his prison the percentage is even higher. He surveys 400 inmates’ records and finds that 260 of the inmates are drug offenders. At a = 0.05, is he correct?

Source: New York Times Almanac.

Answers

Maurice Tutor
(4)
Status NEW Posted 30 Jan 2018 11:01 PM My Price 7.00

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