Workshop 1 Scales of Measurements Name: _______________________________________                              Date Completed: _____________

Provide all solutions, answers and requested outputs after each question.

Question 1. A researcher claims that high blood pressure causes heart attacks.
                    (a) state the independent variable and (b) the dependent variable

Question 2. Religion, as a variable, is continuous or discrete and which of the four measurement scale
                    would be appropriate here?

Question 3. For each scale below. enter the key word or phase that characterizes that scale:

(a) Nominal

(b) Ordinal

(c) Interval

(d) Ratio

Question 4. A teacher uses three different sections of her statistics class to compare different methods.
                    Her sample would be classified as?

Question 5. Sixty percent of the registered voters in a county are Democrats, 30% are Republicans, and
                    the rest are Independents. A proportional stratified sample of the registered voters in the county
                    contains 420 Democrats. How many registered voters are there in the total sample?
                    (hint: 60% of voters are Democrats; total Democrats are 420).

Question 6. Given the following:

Compute (state answer to 2 decimal places)

Questions 7 through 10. Compute the following by filling out the table

X	(X - 17.47)	(X - 17.47)2
13
17
10
16
22
22
18
15
12
19
22
18
18
17
23
N =	=	=
(10)