A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal.
a. What proportion of students drank 7 or more cups of coffee per day
b. What proportion of students drank 2 or more cups per day
c. What proportion of students drank between 2 and 7 cups per day
d. How many cups of coffee would an individual at the 60th percentile rank drink?
e. What is the percentile rank for an individual who drinks 4 cups of coffee per day
f. What is the percentile rank for an individual who drinks 7.5 cups of coffee a day?
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