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WorksheetsCTE_ Alpha_ Quiz_ Final
Total questions: 76
Worksheet time: 44mins
Which two are examples of descriptive statistics?
Median and correlation.
Mean and standard deviation.
Hypothesis testing and histograms.
Variance and regression analysis.
In statistics, a sample:
Can be used for inferences but not for predictions.
Is another word for population.
Is a set of data taken from the population to represent the population.
Is only used in descriptive statistics.
What is statistical estimation?
Methods for rounding answers in statistical calculations.
Methods to determine the best graph to represent statistical data.
Methods for reducing errors in inferential statistics.
Methods for reducing errors in descriptive statistics.
How do descriptive and inferential statistics differ?
Descriptive statistics are more computationally sophisticated than inferential statistics.
Inferential statistics are more computationally sophisticated than descriptive statistics
Descriptive statistics only attempt to describe data, while inferential statistics attempt to make predictions based on data.
Inferential statistics only attempt to describe data, while descriptive statistics attempt to make predictions based on data.
What are two examples of inferential statistics?
Range and percentiles.
Mean and probability distributions.
Regression analysis and hypothesis testing.
Variance and correlation.
A prediction has been made that the chance that a person will be robbed in a certain city is 15%.
Inferential
Descriptive
Tell if the statement if Descriptive or Inferential
A recent survey of 2000 adults having an MBA reported that the average salary is more than $65,000 a year.
Inferential
Descriptive
Tell if the statement if Descriptive or Inferential
The chances of you getting a new car is about the same as passing your statistics class.
Descriptive
Inferential
Tell if the statement if Descriptive or Inferential
The Senior Citizens that live in Pekanbaru have better memories than the ones that live in Padang.
Inferential
Descriptive
Between a Population and Sample: which size is bigger ?
Population
Sample
Both can be the same
Not enough information
These are the two types of statistics:
Discrete and Continuous
Population and Sample
Descriptive and Inferential
Mean and Standard deviation
Which two are examples of descriptive statistics?
Median and correlation.
Mean and standard deviation.
Hypothesis testing and histograms.
Variance and regression analysis.
In statistics, a sample:
Can be used for inferences but not for predictions.
Is another word for population.
Is a set of data taken from the population to represent the population.
Is only used in descriptive statistics.
What is statistical estimation?
Methods for rounding answers in statistical calculations.
Methods to determine the best graph to represent statistical data.
Methods for reducing errors in inferential statistics.
Methods for reducing errors in descriptive statistics.
How do descriptive and inferential statistics differ?
Descriptive statistics are more computationally sophisticated than inferential statistics.
Inferential statistics are more computationally sophisticated than descriptive statistics
Descriptive statistics only attempt to describe data, while inferential statistics attempt to make predictions based on data.
Inferential statistics only attempt to describe data, while descriptive statistics attempt to make predictions based on data.
What are two examples of inferential statistics?
Range and percentiles.
Mean and probability distributions.
Regression analysis and hypothesis testing.
Variance and correlation.
A prediction has been made that the chance that a person will be robbed in a certain city is 15%.
Inferential
Descriptive
Tell if the statement if Descriptive or Inferential
A recent survey of 2000 adults having an MBA reported that the average salary is more than $65,000 a year.
Inferential
Descriptive
Tell if the statement if Descriptive or Inferential
The chances of you getting a new car is about the same as passing your statistics class.
Descriptive
Inferential
Tell if the statement if Descriptive or Inferential
The Senior Citizens that live in Pekanbaru have better memories than the ones that live in Padang.
Inferential
Descriptive
Between a Population and Sample: which size is bigger ?
Population
Sample
Both can be the same
Not enough information
These are the two types of statistics:
Discrete and Continuous
Population and Sample
Descriptive and Inferential
Mean and Standard deviation
Statistics defined as singular term refers to..
Science of designing studies ie. identify problem, gather data, summarize data, present data, analyze data and make a decision.
Numerical facts or data
Why is statistical study important?
To solve problem
Help to investigate relationship between variables
Help in making wise decision
To provide solution/option for problem based on proper statistical study
A student measures the weight of every individual in his batch. This means that he will get...
Sample
Statistics
Variable
Parameter
What are the characteristics of a parameter?
Population is complete
Population is fixed
Population is not fixed
Population is not complete
The correct steps of statistical problem solving is...
Identify problem > present data > gather data > analyze data > reach a decision
Identify problem > gather data > present data > analyze data > reach a decision
Identify problem > gather data > analyze data > present data > reach a decision
Identify problem > present data > analyze data > gather data > reach a decision
Inferential vs descriptive statistics??
1) Making statements for the population based on samples
Descriptive
Inferential
Inferential vs descriptive statistics??
2) Stating a set of data's mean, median, mode, standard deviation and etc
Descriptive
Inferential
Inferential vs descriptive statistics??
3) Making generalization
Descriptive
Inferential
Inferential vs descriptive statistics??
4) Uses the data to provide descriptions of the population, either through numerical calculations or graphs or tables.
Descriptive
Inferential
Inferential vs descriptive statistics??
5) Draws educated conclusions about a population that is likely too large to sample completely
Descriptive
Inferential
Statistics comes from the Latin word “statisticus”, which means?
the study of people, supplies, and the like in a state
the study of earth and its continents
the study of shapes and environment
It is the entire collection of observations such as person or object included in the study.
Sample
Individual
Population
The data that gives numerical information.
Qualitative Data
Quantitative Data
Parameter
Which of the following data are quantitative.
Age of Students
Color of the Eye
Number of Computers in the School
Score in the Entrance Test
School Logo
Which of the following data are qualitative.
May Favorite Summer Sports
Number of Tourist Spot
Number of Math Teacher in the School
Blood Type of the Class
The Address of your Teacher
Which of the following data are discrete.
Dimensions of the Whiteboard
Number of Chairs in the Classroom
Speed of the Racing Car
Number of Students who were absent
Number of Students in a Class
Which of the following data are continuous.
Amount Spent during a Sale
Number of Petals of the Gumamela Flower
Height of a Building
Weight of a New Born Baby
Number of Female in the Class
What is the level of measurement of CIVIL STATUS?
Nominal
Ordinal
Interval
Ratio
What is the level of measurement of TEMPERATURE?
Nominal
Ordinal
Interval
Ratio
What is the level of measurement of TOP 3 STUDENTS IN A CLASS?
Nominal
Ordinal
Interval
Ratio
What is the level of measurement of IQ SCORES?
Nominal
Ordinal
Interval
Ratio
What is the formula to calculate the mean of a set of numbers?
Multiplying all numbers together
Sum of all numbers divided by the total count of numbers
Dividing the largest number by the smallest number
Adding all numbers together
Which measure of central tendency is not affected by extreme values in a data set?
range
mode
median
mean
What does the standard deviation measure in a data set?
Mean or average
Mode or most frequent value
Variation or dispersion
Median or middle value
What is the difference between inferential and descriptive statistics?
Inferential statistics involves making inferences or predictions about a population based on a sample, while descriptive statistics simply describe or summarize data.
Inferential statistics involves analyzing individual data points, while descriptive statistics involves analyzing overall trends.
Descriptive statistics is used for qualitative data, while inferential statistics is used for quantitative data.
Inferential statistics is used for historical data, while descriptive statistics is used for future predictions.
Give an example of a parametric test used in research statistics.
t-test
Chi-squared test
ANOVA
Mann-Whitney U test
What is the purpose of using non-parametric tests in research statistics?
To analyze data that does not meet the assumptions of parametric tests
To analyze data that meets the assumptions of parametric tests
To make the research results more complicated
To simplify the statistical analysis process
Calculate the mean of the following set of numbers: 10, 15, 20, 25, 30.
15
25
20
35
Which statistical tool is used to measure the variability or dispersion of a data set?
Standard deviation
Mean
Mode
Median
Explain the concept of mode in statistics.
The mode is the average of all the values in a data set.
The mode is the value that appears most frequently in a data set.
The mode is the highest value in a data set.
The mode is the lowest value in a data set.
What is the main difference between median and mode?
Median is the average value, while mode is the sum of all values.
Median is the range of values, while mode is the middle value.
Median is the highest value, while mode is the lowest value.
Median is the middle value, while mode is the most frequent value.
What is the purpose of using a t-test in research statistics?
To compare the means of two groups
To analyze categorical data
To measure the dispersion of a data set
To calculate the mode of a data set
Explain the concept of ANOVA in research statistics.
ANOVA is used to compare the means of more than two groups
ANOVA is used to analyze non-parametric data
ANOVA is used to calculate the median of a data set
ANOVA is used to measure the variability of a data set
Calculate the mode of the following set of numbers: 5, 7, 8, 7, 9, 5, 7.
5
7
8
9
Explain the concept of range in statistics.
The range is the average of all the values in a data set.
The range is the value that appears most frequently in a data set.
The range is the highest value in a data set.
The range is the difference between the highest and lowest values in a data set.
What is the formula to calculate the median of a set of numbers?
Arranging all numbers in ascending order and selecting the middle value
Sum of all numbers divided by the total count of numbers
Dividing the largest number by the smallest number
Adding all numbers together
Which of the following is an example of qualitative data
number of vegetarian students
everyday temperature
number of illiterate people in India
appreciation of art
"Statistics does not help in comparison of data of different regions"
True
False
Descriptive statistics involves estimation and hypothesis testing
True
False
The purpose of descriptive statistics is to
make decision
make estimation
describe data
make hypothesis testing
Types of Statistics are:
marketing and accounting
descriptive and inferential statistic
primary and secondary
quantitative and qualitative
Inferential statistics is....
a techniques to improve the efficiency and effectiveness of the organization.
is a techniques to implement a strategic plan.
making generalization about population by analyzing the sample.
is a good representation of a population
Sample is different from population because...
a set of items selected from the population
a measuring variable for every unit in the population
a complete set
a study done before the actual framework
Example of quantitative data ..
color of eyes
types of glasses
numbers of chairs
marital status
Primary data..
second hand data
first hand information
data from other parties
annual report
It is the collection of all individuals or objects from which the required information is to be obtained.
Data
Population
Sample
Variable
A particular information of interest about the members of either the population or a sample.
Data
Population
Sample
Variable
Which of the following is an example of categorical data?
Age of Grade 7 Students
Favorite subject of Grade 7 Students
Which method of collecting data is the most appropriate for testing the effectiveness of a new vaccine?
Experimental
Interview
Observation
Questionnaire
Level of measurement where there is logical ordering or categories.
Nominal
Ordinal
Interval
Ratio
Which is an example of ratio scale?
time
gender
grades
all of these
Two branches of statistics are________________ and ___________.
engineering and chemistry
mathematical and inferential
inferential and descriptive
hard and easy
_____________________ statistics consists of generalizing from samples to populations, performing estimations and hypothesis tests, determining relationships among variables, and making predictions.
mathematical
descriptive
inferential
population
A professor at White Oak University found that over the past 10 years that the average number of students in a class is 22.6
Inferential
Descriptive
