Question 1

Which of the following is a characteristic of a standard deviation?

Options :

A : The standard deviation is based on the middle portion of the data.

B : The standard deviation reflects the variation of values between two points.

C : The standard deviation uses all the data points from the data set in its calculation

D : At least 95% of the points in a data set will always be within +-2 standard deviations from the mean.

Answer: C

Question 2

What type of regression model does the following equation suggest? y = a + b1x1

Options :

A : Multiple factor regression

B : Nonlinear regression

C : Bivariate regression

D : Curvilinear regression

Answer: C

Question 3

You have been asked to comment on a proposed provision in the union contract. over the next 3 years, management proposes increases of 2%, 2.5%, 3% over the 3 year life of the contract. The union negotiator insists that it be 3%, 2.5%, 2.0%. Assuming the hourly rate for a job class is 12.50/hr., what is the rate in three years?

Options :

A : It will be 13.46 after three years

B : Management rate is higher

C : Union rate is higher

D : Cannot calculate

Answer: A

Question 4

For the same problem set, the market appears to be paying entry-level buyers 42,500. Approx how many job evaluation points should your entry-level buyer position be worth to your org, assuming the regression model provides a good fit, based solely on the linear model of y = 15000 + 50x?

Options :

A : 50

B : 15000

C : 500

D : 550

Answer: D

Question 5

In positively skewed distributions, the mean is usually which of the following?

Options :

A : Larger than the median

B : Between the median and the mode

C : Smaller than the median

D : Equal to the median

Answer: A

Free C3 Mock Exam – Practice Online Confidently

Buying Options: