Statistics 1 Final Exam Questions With Accurate Solutions.

Statistics 1 Final Exam Questions With Accurate Solutions.
In a questionnaire, respondents are asked to mark their gender as male or
female. Gender is an example of the
a. ordinal scale of measurement
b. nominal scale of measurement
c. ratio scale of measurement
d. interval scale of measurement - accurate answers-b. nominal scale of
measurement


Some hotels ask their guests to rate the hotel's services as excellent, very
good, good, and poor. This is an example of the
a. ordinal scale of measurement
b. ratio scale of measurement
c. nominal scale of measurement
d. interval scale of measurement - accurate answers-a. ordinal scale of
measurement


Income is an example of a variable that uses the
a. ratio scale of measurement
b. interval scale of measurement
c. nominal scale of measurement
d. ordinal scale of measurement - accurate answers-a. ratio scale of
measurement


The scale of measurement that has an inherent zero value defined is the
a. ratio scale
b. nominal scale

,c. ordinal scale
d. interval scale - accurate answers-a. ratio scale


Data that can be grouped by specific categories are referred to as
a. quantitative data
b. ratio scale data
c. categorical data
d. interval scale data - accurate answers-c. categorical data


The entities on which data are collected are
a. elements
b. populations
c. samples
d. None of these alternatives is correct. - accurate answers-a. elements


The set of measurements collected for a particular element is called
a. variable
b. observation
c. sample
d. None of these alternatives is correct. - accurate answers-b. observation


A characteristic of interest for the elements is called a(n)
a. sample
b. data set
c. variable

,d. None of these alternatives is correct. - accurate answers-c. variable


What of the following is true for categorical data?
a. can be grouped into some specific categories
b. use either nominal or ordinal scale of measurement
c. might assume numerical values but these values are codes assigned to the
categories
d. all of the above - accurate answers-d. all of the above


What of the following is not true for quantitative data?
a. They are always numeric
b. They use either interval or ratio scale of measurement
c. They are only useful in the branch of Inferential Statistics
d. Their numeric values indicate how much or how many - accurate answers-c.
They are only useful in the branch of Inferential Statistics


A portion of the population selected to represent it is called
a. Descriptive Statistics
b. Inferential Statistics
c. a census
d. a sample - accurate answers-d. a sample


Data collected at the same, or approximately the same, point in time are
a. time series data
b. approximate time series data
c. cross-sectional data

, d. approximate data - accurate answers-c. cross-sectional data


Data collected over several time periods are
a. time series data
b. time controlled data
c. cross-sectional data
d. time cross-sectional data - accurate answers-a. time series data


In Statistics sampling is used, in particular, to
a. apply computers in statistical studies
b. conduct tests concerning something of interest in the sample
c. estimate something of interest in the sample
d. estimate something of interest in the population - accurate answers-d.
estimate something of interest in the population


A frequency distribution is
a. a tabular summary of a data set showing the relative frequency
b. a graphical form of representing data
c. a tabular summary of a data set showing the frequency of items in each of
several non-overlapping classes
d. a graphical device for presenting qualitative data - accurate answers-c. a
tabular summary of a data set showing the frequency of items in each of
several non-overlapping classes


The sum of frequencies for all classes will always equal
a. 1