Please consider the first problem from different perspectives, discuss a multitude of strategies for getting at a solution, make conjectures…

Please consider the first problem from different perspectives, discuss a multitude of strategies for getting at a solution, make conjectures and justify solutions…

( Illowsky Chapter 1 #72, page 52)

72. A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every eighth house in the neighborhood around the park was interviewed. The sampling method was:

a. simple random

b. systematic

c. stratified

d. cluste

 

 

Exercise #3 Pg #62

3. If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Explain.

 

Exercise #10 Pg #63

10. For the numbers 1, 2, 4, 16, compute the following:

ΣX

ΣX2

(ΣX)2

 

Exercise #17 Pg #64

17. (AT) What is the independent variable of this experiment? How many levels does it have?

 

Exercise #18 Pg #64

18. (AT) What is the dependent variable? On what scale (nominal, ordinal, interval, ratio) was it measured?

 

 

Illowsky

Exercise #50 Pg #51

Use the following information to answer the next three exercises: A Lake Tahoe Community College instructor is interested

in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter.

50. What is the population she is interested in?

a. all Lake Tahoe Community College students

b. all Lake Tahoe Community College English students

c. all Lake Tahoe Community College students in her classes

d. all Lake Tahoe Community College math students

 

 

 

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