Question:

Which of the following measures become larger as the data is more dispersed

A.

median and range

B.

mean, variance, and standard deviation

C.

mean and median

D.

range, variance, and standard deviation

Answer» d. range, variance, and standard deviation

Question:

In computing Index Numbers, ___________ is concerned with the measurement of pricechanges over a period of years, when it is desirable to shift the base

A.

unit test

B.

circular test

C.

time reversal test

D.

none of the above

Answer» b. circular test

Question:

Which of the following measures of central tendency is not affected by extreme values inthe sample data set

A.

mode

B.

median

C.

median and mode

D.

mean

Answer» a. mode

Question:

Cobb Douglas production function is an example of

A.

linear model

B.

double log model

C.

lin log model

D.

log lin model

Answer» b. double log model

Question:

The cyclical component of time-series data is usually estimated using

A.

linear regression analysis

B.

moving averages

C.

exponential smoothing

D.

qualitative methods

Answer» d. qualitative methods

Question:

A correlation coefficient of +0.40 could be considered

A.

weak

B.

moderate

C.

strong

D.

zero

Answer» b. moderate

Question:

Laspeyre’s method and Paasche’s method do not satisfy

A.

unit test

B.

time reversal test

C.

factor reversal test

D.

none of the above

Answer» b. time reversal test

Question:

Linear regression means that every time the value of x increases, y changes by a______amount.

A.

increasing

B.

decreasing

C.

constant

D.

all of the above

Answer» c. constant

Question:

Which of the following terms best describes data that were originally collected at anearlier time by a different person for a different purpose

A.

primary data

B.

secondary data

C.

experimental data

D.

field notes

Answer» b. secondary data

Question:

Which of the following could be value of correlation coefficient

A.

0.30

B.

+1.00

C.

−0.27

D.

all of the above

Answer» d. all of the above