Researchers at a computer company conducted a survey on the number of hours ovel iet
computers are being used in households each day. The data from a random sample of to
2,100 homes produced a normal distribution with a mean length of time of 5.3 hours per
day with a standard deviation of 0.9 hour. Based on the sample, which percentage BEST
represents the percentage of all households that use a computer less than 5 hours or
more than 6 hours per day?
A 21.8%
C. 41.2%
B. 36.9%
D. 58.7%
