Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with
and
.
(a) What proportion of children aged 13 to 15 years old have scores on this test above 89 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.)
Answer:
help (z-table)

(b) Enter the score which best approximates the lowest 44 percent of the distribution.
Round your answer to the nearest tenth.
Answer:
help (z-table)

(c) Enter the score which best approximates the highest 1 percent of the distribution.
Round your answer to the nearest tenth.
Answer:
help (z-table)