Assess It: Unit 1 - Topic 1

Question 1

Which statement about statistics is not true?
A. Statistics is the science of analyzing numerical data.
B. Statistics is the science of analyzing non-numerical data.
C. Statistics are used every day to solve problems and answer questions.
D. Statistics are only useful for scientists.
E. Statistics are used to improve quality and performance.

Answer 1

D. Statistics are only useful for scientists.
Statement D is not true because statistics are useful for almost every business or industry available.

Question 2

Which of the following is not an example of descriptive statistics?
A. a graph of students’ birthday months in a kindergarten class
B. a chart showing the employment rate of new college graduates over the past five years
C. a graph of a sample of students from a small high school to represent all high school students
D. a table showing the performance of that particular set of students
E. a chart of shoe sales in a local shoe store

Answer 2

C. a graph of a sample of students from a small high school to represent all high school students
Statement C is incorrect because using a sample to represent a population is an example of inferential statistics

Question 3

Sort the following into two categories
Category 1: Tools for Descriptive Statistics
Category 2: Tools for Inferential Statistics
A. Hypothesis testing
B. Mode
C. Skewness
D. Statistical estimation
E. Confidence interval
F. Median
G. Standard deviation
H. Correlation
I. Range
J. Regression analysis
K. Mean

Answer 3

Category 1: Tools for Descriptive Statistics include:
B. Mode
C. Skewness
F. Median
G. Standard deviation
I. Range
K. Mean

Category 2: Tools for Inferential Statistics include:
A. Hypothesis testing
D. Statistical estimation
E. Confidence interval
H. Correlation
J. Regression analysis