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- 1.
- Consider the height example given above. Determine the first and third population quartiles. (Ans: 67.30204, 72.69796).
- 2.
- In the last problem, a basketball coach remarks that the even shortest professional basketball player, exceeds the 98th percen tile in height. Does this make
sense? (Help with answer: 98th percentile is 78.215).
- 3.
- Suppose we know that scores on this exam are approximately normally distributed with mean 430 and standard deviation 50. Determine the first and third population quartiles. (Ans: 396.2755, 463.724 5).
- 4.
- Smith College only accepts the upper 20% of people taking the exam in #3. What is the lowest score a person can make on the exam and still be acceptable to
Smith College? (Ans. 472.0811).
- 5.
- Verify that for any normal population, the probability that a measurement falls in the interval
to
is .9544997.
- 6.
- Verify that for any normal population, the probability that a measurement falls in the interval
to
is .9973002.

*2000-08-26*