Students taking Professor’s Angela Mazza’s Introduction to Marketing course spent an average of 1.5 hours to...

Students taking Professor’s Angela Mazza’s Introduction to Marketing course spent an average of 1.5 hours to complete an assignment with a standard deviation of 0.40 hours and it follows the normal probability distribution.

(a) Find the portion of the students who spent between 1.5 and 2.5 hours to complete an assignment.

(b) Find the portion of the students who spent more than 2.5 hours to complete an assignment.

(d) Find the portion of the students who spent between 1 and 2.7 hours to complete an assignment.

Solutions

Expert Solution

(a)49.38 percent of students spent between 1.5 and2.5 hours to complete an assignment.

(b) 0.62 percent of students spent more than 2.5 hours to complete an assignment.

(d) 89.305 percent of students spent between 1 and 2.7 hours to complete an assignment.

orchestra answered 1 year ago

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