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Questions and Answers
Which area does statistics primarily contribute to when analyzing labor turnover rates?
Which area does statistics primarily contribute to when analyzing labor turnover rates?
- Marketing
- Finance
- Personnel management (correct)
- Production
Focus groups and panels of respondents are types of what kind of data sources?
Focus groups and panels of respondents are types of what kind of data sources?
- Primary data sources (correct)
- Tertiary data sources
- Secondary data sources
- Statistical data sources
How are variables like weight and height categorized in statistics?
How are variables like weight and height categorized in statistics?
- Discrete variables
- Qualitative variables
- Continuous variables (correct)
- Categorical variables
Which technique is specifically used for forecasting economic factors like inflation rate?
Which technique is specifically used for forecasting economic factors like inflation rate?
In what statistical area are numerical methods and graphical methods primarily applied?
In what statistical area are numerical methods and graphical methods primarily applied?
Which of the following best describes the concept of reliability in statistics?
Which of the following best describes the concept of reliability in statistics?
What branch of statistics deals with interval and ratio scales?
What branch of statistics deals with interval and ratio scales?
Reports on production and quality control issued by companies fall under which category of data sources?
Reports on production and quality control issued by companies fall under which category of data sources?
Which measurement scale provides both the difference of proportions and the magnitude of differences?
Which measurement scale provides both the difference of proportions and the magnitude of differences?
What type of measurement scale categorizes values to represent qualitative differences and ranks them meaningfully?
What type of measurement scale categorizes values to represent qualitative differences and ranks them meaningfully?
How is the measurement of how well a particular concept or technique measures variables classified?
How is the measurement of how well a particular concept or technique measures variables classified?
Data that arises from a specific process of counting is classified as which type of data?
Data that arises from a specific process of counting is classified as which type of data?
What are characteristics intended for analysis and investigation in a population classified as?
What are characteristics intended for analysis and investigation in a population classified as?
If vertical lines are drawn at every point of a straight line in a frequency polygon, what does this create?
If vertical lines are drawn at every point of a straight line in a frequency polygon, what does this create?
Discrete variables and continuous variables fall under which type of classification?
Discrete variables and continuous variables fall under which type of classification?
In stem and leaf display diagrams, which digits are considered as the stems?
In stem and leaf display diagrams, which digits are considered as the stems?
What is the width of the class interval if the largest numerical value is 85, the smallest is 65, and there are 8 classes?
What is the width of the class interval if the largest numerical value is 85, the smallest is 65, and there are 8 classes?
What is the arithmetic mean if Σfx is 300, A= 35, the number of observations is 15, and the width of class interval is 5?
What is the arithmetic mean if Σfx is 300, A= 35, the number of observations is 15, and the width of class interval is 5?
Which type of analysis uses stem and leaf displaying techniques?
Which type of analysis uses stem and leaf displaying techniques?
Which classification do quartiles, median, percentiles, and deciles belong to in measures of central tendency?
Which classification do quartiles, median, percentiles, and deciles belong to in measures of central tendency?
What is the graph called if midpoints of bars on charts are marked and joined by a straight line?
What is the graph called if midpoints of bars on charts are marked and joined by a straight line?
If the mode is greater than the median in a probability distribution, how is the distribution classified?
If the mode is greater than the median in a probability distribution, how is the distribution classified?
Which graphical diagram represents total observations in percentages rather than absolute values?
Which graphical diagram represents total observations in percentages rather than absolute values?
How is a frequency distribution classified when most values are dispersed to either the left or right of the mode?
How is a frequency distribution classified when most values are dispersed to either the left or right of the mode?
Median, mode, deciles, and percentiles are all considered measures of what?
Median, mode, deciles, and percentiles are all considered measures of what?
What type of statistic is described when central tendency is calculated using the entire population as input data?
What type of statistic is described when central tendency is calculated using the entire population as input data?
What is the combined arithmetic mean for unit one with 650 employees earning $2750 and unit two with 700 employees earning $2500?
What is the combined arithmetic mean for unit one with 650 employees earning $2750 and unit two with 700 employees earning $2500?
What is the consequence if the most repeated observations recorded are outliers of data in relation to the mode?
What is the consequence if the most repeated observations recorded are outliers of data in relation to the mode?
If the number of observations is 30 and the value of the arithmetic mean is 15, what is the sum of all values?
If the number of observations is 30 and the value of the arithmetic mean is 15, what is the sum of all values?
Which scale categorizes events in a collectively exhaustive and mutually exclusive manner?
Which scale categorizes events in a collectively exhaustive and mutually exclusive manner?
What type of rating scale allows respondents to select the most relevant option from multiple stated options?
What type of rating scale allows respondents to select the most relevant option from multiple stated options?
Government and non-government publications are classified as which type of data sources?
Government and non-government publications are classified as which type of data sources?
Which variable type can take fixed integer values?
Which variable type can take fixed integer values?
Data generated from routine business activities within a company is classified as what?
Data generated from routine business activities within a company is classified as what?
Questions that yield different answers for their subparts are known as what?
Questions that yield different answers for their subparts are known as what?
What analytical study examines the relationship between output commodity and its price?
What analytical study examines the relationship between output commodity and its price?
Which branch of statistics focuses on the development of statistical methods?
Which branch of statistics focuses on the development of statistical methods?
Study Notes
Statistics in Personnel Management
- Analyzing labor turnover rates, performance appraisals, training programs, and incentive planning are examples of the role of statistics in personnel management.
Data Sources
- Focus groups, individual respondents, and respondent panels are primary data sources.
- Reports on quality control, production, and financial accounts issued by companies are internal secondary data sources.
- Government and non-government publications are external secondary data sources.
- Data generated within a company from routine business activities are internal primary data sources.
Variable Classification
- Variables measured in terms of weight, height, and length are continuous variables.
- Variables that can take fixed integer values are discrete variables.
Statistical Techniques
- Forecasting techniques analyze unemployment rates, inflation rate anticipation, and capacity utilization for manufacturing goods.
- Numerical and graphical methods are used in descriptive statistics.
- Statistical thinking focuses on identifying, controlling, and reducing variations in data.
Measurement Scales
- Nominal scales categorize events in a collectively exhaustive and mutually exclusive manner.
- Itemized rating scales allow respondents to choose the most relevant option from stated options.
- Ratio scales provide differences in proportions as well as the magnitude of differences.
- Ordinal scales categorize values to represent qualitative differences and rank them meaningfully.
Data Analysis
- Double-barreled questions have different answers for their subparts.
- Demand analysis studies the relationship between an output commodity and its price.
- A process converts inputs into outputs under repeatedly the same conditions.
- Mathematical statistics deals with the development of particular statistical methods.
Data Presentation
- In stem-and-leaf displays, stems are leading digits.
- A frequency polygon transformed into a histogram if vertical lines are drawn at every point.
- Discrete and continuous variables are types of quantitative classification.
- Pie diagrams represent total observations in percentages rather than absolute values.
- Frequency polygons are created by joining the midpoints of bars on charts with a straight line.
Measures of Central Tendency
- Median, mode, deciles, and percentiles are measures of the average position.
- If most repeated observations are data outliers, the mode is a poor measure.
- Quartiles, median, percentiles, and deciles are positioned averages.
- In a right-skewed distribution, the mode is less than the median.
- A skewed frequency distribution has most values dispersed to the left or right of the mode.
- If data from the entire population is used, it represents a population parameter.
- The least squares criterion in inferential statistics considers the sum of squared deviations.
- In a negatively skewed distribution, the mean < median < mode.
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Description
This quiz explores the application of statistics in personnel management, focusing on the analysis of labor turnover rates and performance appraisals. It covers data sources, variable classification, and statistical techniques relevant to HR practices. Test your understanding of these critical concepts for managing human resources effectively.
