Question

Last year’s freshman class at Big State University totaled 5,303 students. Of those, 1,266 received a...

Last year’s freshman class at Big State University totaled 5,303 students. Of those, 1,266 received a merit scholarship to help offset tuition costs their freshman year (although the amount varied per student). The amount a student received was N($3,458, $473). If the cost of full tuition was $4,200 last year, what percentage of students who received a merit scholarship did not receive enough to cover full tuition? (Round your answer to the nearest whole percent.)

Percentage of students    %

Homework Answers

Answer #1

The amount a student received was N($3,458, $473)

Mean = $3458

standard deviation = $473

the cost of full tuition was $4,200

Let, X be the amount received

P[ students who received a merit scholarship did not receive enough to cover full tuition ] = P[ X < 4200 ]

P[ X < 4200 ] = P[ ( X - mean(X))/sd(X) < ( 4200   - mean(X))/sd(X) ]

P[ X < 4200 ] = P[ ( X -3458)/21.75 < ( 4200   - 3458)/473 ]

P[ X < 4200 ] = P[ Z < 1.57 ]

P[ X < 4200 ] = 0.9418

P[ X < 4200 ] = 94.18%

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