NOTE: The following problems use the data from various problems in [MBB]. Read each problem in the book, but answer the questions stated here, not the ones in the book. Of course, it is worth studying the questions in the book for your own benefit.

1. Refer to Problem 2.20:

a) What population would be of interest in the situation described in Problem 2.20?

b) Specify the variable of interest and state what type of variable it is (i.e., qualitative, quantitative, discrete, continuous, ordinal, nominal).

c) Do the data given in the book constitute a sample or the population?

d) Compute the mean, variance, standard deviation, and median of the data set, and denote each by its appropriate symbol (this will depend on your answer to part (c)). (Do the computations by hand (calculator).)

e) Are the quantities that you calculated for part (d) parameters or statistics? Explain.

2. Refer to Problem 2.27:

a) Specify the population of interest.

b) Specify the variable of interest and state what type of variable it is. Name at least two other variables that might be of interest in this situation.

c) Same as in #1 (above).

d) Same as in #1.

e) Same as in #1.

3. Refer to Problem 2.37.

(a) - (e): Same questions as in #2 above.

f) Answer part (d) in the book.

4. Refer to Problem 2.42.

a) Does this problem involve one population or more than one? Specify the population(s) of interest.

b) Specify and classify the variable(s) of interest.

c) Are the data given in the book sample data or population data?

d) Compute the mean, median, and standard deviations for the data from each of the two brands.

e) Suppose you have to sign a contract to purchase boxes of raisins for the school lunch program in a large school system. Explain how you would decide between the two brands described in the problem. In particular, is there enough information available to make a decision? If so, what decision would you make? And, if not, what other information would you want in order to make the decision? (Note: There may be more than one right answer to this question. Just like real life.)