Purchase Solution

Statistical analysis relating to human resources

Not what you're looking for?

Ask Custom Question

20.
Although controversial and the subject of some recent lawsuits, some human resource departments administer standard IQ tests to all employees. The Stanford-Benet test scores are well modeled by a Normal model with mean 100 and standard deviation 16. If the applicant pool is well modeled by this distribution, a randomly selected applicant would have what probability of scoring in the following regions?

a) 100 or below?
b) Above 148
c) Between 84 and 116
d) Above 131

22.
Although controversial and the subject of some recent lawsuits, some human resource departments administer standard IQ tests to all employees. The Stanford-Benet test scores are well modeled by a Normal model with mean 100 and standard deviation 16. What cut off value would separate the

a) Lowest 0.15% of all applicants?
b) Lowest 16%?
c) Middle 95%?
d) Highest 2.5%?

46.
Can we use probability models based on Bernoulli trials to investigate the following situations? Explain.

a) You are rolling 5 dice. How likely is it to get at least two 6's to win the game?
b) You survey 500 potential customers to determine their color preference.
c) A manufacturer recalls a doll because about 3% have buttons that are not properly attached. Customers return 37 of these dolls to the local toy store. How likely are they to find buttons not properly attached?
d) A city council of 11 Republicans and 8 Democrats pick a committee of 4 at random. How likely are they to choose all Democrats?
e) An executive reads that 74% of employees in his industry are dissatisfied with their jobs. How many dissatisfied employees can he find among the 481 employees in his company?

50.
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said that they had opened a new credit card account in the past year. If that percentage is accurate, how many students would you expect to survey before finding one who had not opened an account in the past year.

56.
Only 4% of people have Type AB blood. A bloodmobile has 12 vials of blood on a rack. If the distribution of blood types at this location is consistent with the general population, what's the probability they find AB blood in:

a) None of the 12 samples?
b) At least 2 samples?
c) 3 or 4 samples?

Attachments
Purchase this Solution
Solution Summary

The statistical analysis relating to human resources are provided.

Solution Preview

Hello,

Please see the attachments. If you have any doubt, please do not hesitate to contact me.

Thank you for asking BrainMass.

20. Although controversial and the subject of some recent lawsuits, some human resource departments administer standard IQ tests to all employees. The Stanford-Benet test scores are well modeled by a Normal model with mean 100 and standard deviation 16. If the applicant pool is well modeled by this distribution, a randomly selected applicant would have what probability of scoring in the following regions?

Answers
Let X be the Stanford-Benet test scores of applicants. Given that X is normal with mean µ = 100 and standard deviation  = 16.
Standardizing the variable X using and from standard normal tables, we have,

a) 100 or below?
P (X ≤ 100) = = P (Z ≤ 0) = 0.5000
Details
Normal Probabilities

Common Data
Mean 100
Standard Deviation 16

Probability for X <=
X Value 100
Z Value 0
P(X<=100) 0.5

b) Above 148

P (X > 148) = = P (Z > 3) = 0.0013

Details

Normal Probabilities

Common Data
Mean 100
Standard Deviation 16

Probability for X >
X Value 148
Z Value 3
P(X>148) 0.0013

c) Between 84 and 116

P (84 < X < 116) =

= P (-1 < Z > 1)

= 0.6827

Details

Normal Probabilities

Common Data
Mean 100
Standard Deviation 16
Probability for a Range
From X Value 84
To X Value 116
Z Value for 84 -1
Z Value for 116 1
P(X<=84) 0.1587
P(X<=116) 0.8413
P(84<=X<=116) 0.6827

d) Above 131

P (X > 131) = = P (Z > 1.9375) = 0.0263

Details

Normal Probabilities

Common Data
Mean 100
Standard Deviation 16

Probability for X >
X Value 131
Z Value 1.9375
P(X>131) 0.0263

22. Although controversial and the subject of some recent lawsuits, some human resource departments administer standard IQ tests to all employees. The Stanford-Benet test scores are well modeled by a Normal model with mean 100 and standard deviation 16. What cut off value would separate ...

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

View More Free Quizzes
Related BrainMass Solutions

  • HR studies using statistical data

    The study was looking to find patterns of complimentary relationships between adult education and human resources development.

  • Human Resource Management in Recruitment

    The scoring system framework should reflect a higher rubric point mark for skill sets relating towards financial data analysis, statistical knowledge, and presentation skills due to the ability in relaying findings to senior level management teams.

  • HR Statistical data analysis and evaluation

    The statistical tools helps the human resource in the identification and analysis of the trends in worker's turnover, absenteeism, productivity etc in the organization, in order to make policies and frameworks for the procedures to be followed by management

  • Job analysis, position description and legal requirements

    on a regular basis) - Term of employment - Qualifications (necessary skills and experience required) Management and Human Resources by Judith Lindenberger An explanation of how position descriptions are used to recruit, select, and manage

  • Analysis of Human Service Research is used most

    211911 Which types of analysis does human service research use the most? The researcher usually conducts one of 3 types of analysis, a statistical comparison, correlation or predictions.

  • Knowledge of Applied industrial/organizational psychology

    in carrying out the research project, use the statistics to underscore or highlight important data trends in production, efficiency, profit/loss for the organization and employees, in terms of human resources or human capital value action - actually

  • Human Resource Management Plan and

    This explanation provides you a comprehensive argument relating to Human Resource Management Plan and

  • Effect Size in Forensic Research

    Power Analysis, Statistical Significance, & Effect Size. URL: http://meera.snre.umich.edu/plan-an-evaluation/related-topics/power-analysis-statistical-significance-effect-size 3. StatPac (2013). Statistical Significance.

  • Semester and we have an opening presentation

    (iii) Personal Administration( for the study of statistical data relating to wages, cost of living, incentive plans, effect of labour dispute/ unrest on the production, performance standards etc,).

  • Human Life Value American Enterprise Institute

    So it is to be expected that we would be willing to spend any amount of money to save someone we care about, or feel responsible for. Statistical reasoning does not apply to human emotions.

View More Related Solutions