Maurice Tutor

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

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 19 Sep 2017 My Price 5.00

manufacturer of a sports

Sports Car: Fuel Injection The manufacturer of a sports car claims that the fuel injection system lasts 48 months before it needs to be replaced. A consumer group tests this claim by surveying a random sample of 10 owners who had the fuel injection system replaced. The ages of the cars at the time of replacement were (in months):

29

42

49

48

53

46

30

51

42

52

i. Use your calculator to verify that the mean age of a car when the fuel injection system fails is  width= months, with standard deviation s ≈ 8.61months.

ii. Test the claim that the fuel injection system lasts less than an average of 48 months before needing replacement. Use a 5% level of significance.

Answers

Maurice Tutor
(5)
Status NEW Posted 19 Sep 2017 10:09 AM My Price 5.00

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