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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 - 10063WEEK 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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