MATH 103 Week 12 Assignment 2 | MiraCosta College

MATH 103 Week 12 Assignment 2 | MiraCosta College

.  Acrylic bone cement is sometimes used in hip and knee replacements to secure an artificial joint inplace.   The  force  to  break  an  acrylic  bone  cement  bond  was  measured  for  six  specimens,  and  theresulting mean and standard deviation were 306.09 Newtons and 41.97 Newtons, respectively.

  As-suming that it is reasonable to believe that breaking force has a distribution that is approximatelynormal, use a confidence interval to estimate the mean breaking force for acrylic bone cement.Estimation:Method:Q:S:T:N:Check:Calculate:Communicate:

2.  AThe Economistcollects data each year on the price of a Big Mac in various countries around theworld.  A sample of McDonald’s restaurants in Europe in July 2016 resulted in the following Big Macprices (after conversion to U.S. dollars):4.443.152.423.964.354.514.173.694.623.803.363.85The mean price of a Big Mac in the U.S. in July 2016 was $5.04.

 For purposes of this exercise, you canassume it is reasonable to regard the sample as representative of European McDonald’s restaurants.Does the sample provide convincing evidence that the mean July 2016 price of a Big Mac in Europeis less than the reported U.S. price?  Test the relevant hypotheses usingα= 0.05.Hypotheses:Method:Q:S:T:N:Check:Calculate:Communicate:

2.  AThe Economistcollects data each year on the price of a Big Mac in various countries around theworld.  A sample of McDonald’s restaurants in Europe in July 2016 resulted in the following Big Macprices (after conversion to U.S. dollars):4.443.152.423.964.354.514.173.694.623.803.363.85The mean price of a Big Mac in the U.S. in July 2016 was $5.04.  For purposes of this exercise, you canassume it is reasonable to regard the sample as representative of European McDonald’s restaurants.Does the sample provide convincing evidence that the mean July 2016 price of a Big Mac in Europeis less than the reported U.S. price? 

Test the relevant hypotheses usingα= 0.05.Hypotheses:Method:Q:S:T:N:Check:Calculate:Communicate:

 


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