- The ongoing study of body fat percentages seeks to
determine the mean body fat percentage for the female
students at the College of Micronesia-FSM Palikir
national campus. Forty-two female students at the College
of Micronesia-FSM Palikir national campus have had their
body fat percentage measured with a mean body fat
percentage of 28.6% body fat.

- What is the population in the study?

- What is the sample in the study?

- Suppose a member of the staff who is not taking
any classes has their body fat percentage
determined. Can their data be included in the
sample?

Why?

- What is the population in the study?
- On my run home Wednesday evening I tracked my pace per
kilometer. The pace data is as follows:

7.11 minutes per kilometer to Dolon

5.83 minutes per kilometer to Sekere

6.75 minutes per kilometer into Kolonia

7.05 minutes per kilometer to Dausokele

6.50 minutes per kilometer to Nantipw

This data is an example of what level of measurement?

- A pair of six sided dice are rolled twenty times
producing the following results.

6, 7, 8, 9, 7, 8, 8, 12, 8, 4, 7, 9, 6, 10, 7, 8, 7, 6, 2, 6

- What is the minimum value in this data set? _____

- What is the maximum value in this data set _____

- What is the range for this data? ______________

- If this data is to be divided into five bins (classes,
intervals) what is the width of a single bin?
________

- Determine the frequency and calculate the
relative frequency using five bins (classes,
intervals). Record your results in the table
below.

Bins ( Classes or Intervals) Frequency Relative Frequency

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______

_______**Sum:**

_______________

_______________

- Sketch a relative frequency histogram of the
data, labeling your horizontal axis as
appropriate.

- What is the shape of the distribution? _____

- What is the sample size n? _____________

- What is the sum of the data?

- What is the mode? ___________

- What is the median? ___________

- What is the sample mean? ___________

- What is the sample standard deviation for the
data? _____.

- What is the population standard deviation for the
data? _____.

- What is the sample Coefficient of Variation for
the data? ____.

- What is the minimum value in this data set? _____
- Yap High School has a TOEFL average of 468 with a sample
standard deviation of 70. Weno High School has a
TOEFL average of 371 with a sample standard deviation of
40.

- Which school has the higher mean score?

- Which school produces more consistent results,
that is, which school produces students more
consistently with a score close to the school
average?

- Which school has the higher mean score?