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MATH 221 - WEEK 5 QUIZ Statistics For Decision Making.

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MATH 221 - WEEK 5 QUIZ Statistics For Decision Making.

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9 Week 5: Quiz: Statistics for Decision-Making - 10063


WEEK 5: QUIZ




T AKE THE QUIZ AGAIN



ATTEMPT HISTORY
Attempt Time Score
LATEST A ttempt 1 37 minutes 36 out of 36




Score for this attempt: 36 out of 36
Submitted Sep 29 at 3:47am T op
This attempt took 37 minutes.


Question 1 pts




1/12

, 9 Week 5: Quiz: Statistics for Decision-Making - 10063

(CO 4) From a random sample of 68 businesses, it is found that the
mean time that employees spend on personal issues each week is
5.8 hours with a standard deviation of 0.35 hours. What is the 95%
confidence interval for the amount of time spent on personal issues?


Correct! (5.72, 5.88)


(5.74, 5.90)


(5.73, 5.87)


(5.71, 5.89)




See text page 301




Question 2 pts


(CO 4) If a confidence interval is given from 8.52 to 10.23 and the
mean is known to be 9.375, what is the maximum error?


1.710

Correct! 0.855


0.428


8.520



T op
See text page 301




2/12

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