MATH 221 Week 5 Quiz 2 | Devry UniversityQuestion 1(CO 4) From a random sample of 55 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? ·
(5.71, 5.89)
·
(5.73, 5.87)
·
(5.74, 5.90)
·
(5.72, 5.88)Question 2(CO 4) If a confidence interval is given from
8.52 to

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20 Jan 2022