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| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
9.33  A consumer group is interested in  estimating the proportion of packages of ground beef sold at a par- ticular store that have an actual fat content exceeding the fat content stated on the label. How many packages of ground beef should be tested to estimate this proportion to within .05 with 95%  confidence?
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9.34 Given a variable that has a t distribution with the specified degrees of freedom, what percentage of the time will its value fall in the indicated region?
a.     10 df, between -1.81 and 1.81
b.     10 df, between -2.23 and 2.23
c.     24 df, between -2.06 and 2.06
d.     24 df, between -2.80 and 2.80
e.     24 df, outside the interval from -2.80 to 2.80
f.     24 df, to the right of 2.80
g.     10 df, to the left of -1.81
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