Question
A national survey found that college students work an average of 24 hours per week. Assuming that the number of hours worked is approximately normally
A national survey found that college students work an average of 24 hours per week. Assuming that the number of hours worked is approximately normally distributed with a standard deviation of 3 hours
a) what proportion of college students work more than 19 hours?
b) how many hours do students, in the middle 50% of the population, work? Round the answers to one decimal place.
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Social Statistics For A Diverse Society
Authors: Chava Frankfort Nachmias, Anna Leon Guerrero
7th Edition
148333354X, 978-1506352060, 1506352065, 978-1483359687, 1483359689, 978-1483333540
