Project #29170 - Statistics

1.        A research center estimates that no more than 40% of US adults eat breakfast every day.  In a random sample of 250 adults, 41.6% say they eat breakfast every day.  At alpha = .01, is there enough evidence to reject the researches claim. (30 pts)

 

 

2.        The attached excel spreadsheet (Problem 2 tab) contains data of the amount that customers spend in a supermarket on a specific Friday during the year.  Assume this data represents a sample. Recent history has shown that a customer spends on average more than $95 at this supermarket on a given Friday.  Conduct a one sided hypothesis test at a level of significance of .10 to determine if the sample meets this criteria. (35 Pts)

 

3.        Studies from the FDA shows that a particular strain of bacteria infection will become contagious if exposure is ordained beyond 36 hours as the bacteria dies within that time frame.    A study was conducted on 121 samples of the bacteria infection.  The samples revealed that the bacteria died on average of 36.8 hours with a standard deviation of 7.25 hours (35 pts)

 

a.        Test if the 121 sample meets the 36 hour requirement at the a = .05 level of significance

 

b.        What is the 95% confidence interval values for this study

Subject Mathematics
Due By (Pacific Time) 04/27/2014 12:00 am
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy