The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and that the times are normally distributed. For the 10 percent who spend the most time reading national news online, how much time do they spend?
A) 11.72
B) 28.52
C) 86.28
D) 69.50

Question

The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and that the times are normally distributed. For the 10 percent who spend the most time reading national news online, how much time do they spend?
A) > 11.72
B) > 28.52
C) > 86.28
D) > 69.50

Quizplus · Accepted Answer

= 1.28125 =x = 20.50 + 49 = 69.50

The Average Time an Individual Reads Online National News Reports