Deck 12: Statistical Applications in Operations Management

Question 1

Useful operational data can only be obtained through an enterprise scale Hospital Information system.

Answer 1

False
Sophisticated and detailed operational analyses can come from use of routine management reporting.

Question 2

A statistical analysis does not require a sophisticated statistical software package.

Answer 2

True
Many sophisticated statistical analyses can be completed using only a tool like Microsoft Excel.

Question 3

The standard deviation and coefficient of variation are measures of central tendency.

Answer 3

True

Question 4

A distribution of data that is widely scattered is best for predicting results or understanding the actual causes of the results observed because the data shows a broad range of results.

Question 5

Microsoft Excel can calculate the range of a data distribution using the =RANGE() command.

Question 6

Fundamental to linear regression is the assumption that there is a straight-line relationship between the dependent and independent variables.

Question 7

Which of the following describes the observation that is in the center of a data distribution?

A) Mean
B) Mode
C) Median
D) Coefficient of Variation

Question 8

Which of the following is a measure of how data is scattered or concentrated around the mean relative to the mean itself in a data distribution?

A) Mean
B) Mode
C) Standard deviation
D) Coefficient of Variation

Question 9

Which of the following is a measure of the average of all values in a data set?

A) Mean
B) Mode
C) Standard deviation
D) Coefficient of Variation

Question 10

Which of the following describes the outcome being projected based on variation in other variables?

A) Slope of line
B) Dependent variable
C) Intercept
D) Independent variable

Question 11

Which of the following describes the factor that influences the outcome of interest?

A) Slope of line
B) Dependent variable
C) Intercept
D) Independent variable

Question 12

Describe how a linear relationship such as that in a linear regression is expressed in mathematical terms.

Question 13

What are two types of sampling described in your readings and how is each defined?

Question 14

Differentiate between a population and a sample in the context of a statistical analysis.