Maurice Tutor

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About Maurice Tutor

Levels Tought:
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Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 408 Weeks Ago
Questions Answered: 66690
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Education

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

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 03 Feb 2018 My Price 6.00

International Coffee Association

10.44  The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as

 

1.65 cups. Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups. In a two-tail test at the 0.05 level, could the residents of this city be said to be significantly different from their counterparts across the nation?   Source: coffeeresearch.org, August 8, 2006.

 

10.45 Taxco, a firm specializing in the preparation of income tax returns, claims the mean refund for customers

 

who received refunds last year was $150. For a random sample of 12 customers who received refunds last year, the mean amount was found to be $125, with a stan- dard deviation of $43. Assuming that the  population

 

is approximately normally distributed, and using the

 

0.10 level in a two-tail test, do these results suggest that Taxco’s assertion may be  accurate?

 

 

 


Answers

Maurice Tutor
(5)
Status NEW Posted 03 Feb 2018 09:02 PM My Price 6.00

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