Identify the level of measurement of the data, and explain what is wrong with the given calculation.

In a survey, the

politicalparties

of respondents are identified as

100

for

aDemocrat,

200

for

aRepublican,

300

for

aLibertarian,

and

400

for anything else. The average (mean) is calculated for

683

respondents and the result is 256.1.

Question content area bottom

Part 1

The data are at the

level of measurement.

Part 2

What is wrong with the given calculation?

A.

The true average (mean) is

202.4.

B.

Such data are not counts or measures of anything, so the average (mean) needs to be computed in a different way.

C.

Such data are not counts or measures of anything, so it makes no sense to compute their average (mean).

D.

There is nothing wrong with the given calculation.

second question

Identify the level of measurement of the data, and explain what is wrong with the given calculation.

In a set of data,

alertlevels

are represented as

0

for

low,

1

for

medium,

and

2

for

high.

The average (mean) of the

570

alertlevels

is 0.9.

Question content area bottom

Part 1

The data are at the

ordinal

nominal

interval

ratio

level of measurement.

Part 2

What is wrong with the given calculation?

A.

Such data should not be used for calculations such as an average (mean).

B.

One must use a different method to compute the average (mean) of such data.

C.

The true average (mean) is

1.0.

D.

There is nothing wrong with the given calculation.