User Account

All Pages

Officers scores to standardized z-values

Assignment Help Basic Statistics
Reference no: EM132464920

1) On a police sergeant's examination, the historical mean score was 80 with a standard deviation of 20. Four officers who were alleged to be cronies of the police chief scored 195, 171, 191, and 189, respectively, on the test. This led to allegations of irregularity in the exam.

Convert these four officers scores to standardized z-values. (Round to nearest 2 decimal places.)

z-score for 195 =?

z-score for 171 =?

z-score for 191 =?

z-score for 189 =?

Reference no: EM132464920

Questions Cloud

Randomly chosen adult has some college education : Let C be the event that a randomly chosen adult has some college education. Let M be the event that a randomly chosen adult is married.
Enumerate the sample space : Enumerate the sample space and then find the probability that:
How much is the preferred stock at December : On year 2022, there was an economic turnover that reverses the loss sustained by the company from last year. How much is the preferred stock at December
Draw two process maps to reflect the sales processes : Describe any weaknesses in these processes or internal controls. As you identify weaknesses, also describe your suggested improvement.
Officers scores to standardized z-values : Convert these four officers scores to standardized z-values. (Round to nearest 2 decimal places.)
Compute the expected cost for each decision : Compute the expected cost for each decision and select the best one strictly on the basis of expected cost.
Record amortization for nath-langstrom services : Record amortization for Nath-Langstrom Services,Record the beginning of the lease for Nath-Langstrom Services.Record depreciation for ComputerWorld Leasing.
Are you an on campus student or an off campus student : Are you an on campus student or an off campus student? In how many extracurricular activities do you participate?
Geometric random variables : Let X be a geometric random variable with parameter p. Find the probability that X=10. Express your answer in terms of p.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence interval for the true calcium content

The calcium (Ca) content of a powdered mineral substance was analyzed 10 times with the following percent compositions recorded: 0.0271 0.0282 0.0279 0.0281 0.0268 0.0271 0.0281 0.0269 0.0275 0.0276 a. Find a 99% confidence interval for the true calc..

  What is a real-world example of when a hypothesis

What is a real-world example of when a hypothesis test could be used? The response should also include a numerical example for another student to work

  Analysing a set of data of which can be found in excel file

In this research report you will be analysing a set of data of which can be found in an EXCEL file available for download in the Assessment section of the Blackboard site.

  Which type of error is more serious in the setting

Slow response times by paramedics, firefighters, and policemen can have serious consequences for accident victims. In the case of life-threatening injuries.

  Time for long-distance phone calls

The length of time for long-distance phone calls has been found to be normally distributed, with a mean of 24.7 minutes and a standard deviation

  What are the chances your flight will leave on time

Departures. What are the chances your flight will leave on time? The U.S. Bureau of Transportation Statistics of the Department of Transportation publishes.

  Understanding the process to the answer

A. Can you break it down so I can explain it to someone who is having a hard time understanding the process to the answer in detail?

  Plotting fitted values against residuals

Plot fitted values against residuals. Does this plot point out any problems with homoscedasticity?

  Calculate the variance of the number of breakdowns

Bill Russ, the production manager at Ross Co., maintains detailed records on number of times each machine breaks down and requires service all through the week. Bill records show that the Puret grinder has required repair service according to the ..

  Write statistical model that is foundation for this analysis

Write the statistical model that is the foundation for this analysis. Also include a description of all assumptions

  Describe the sample mean of the trait

Verify that if the raw data for each individual in a sample is 1 when the individual has a certain trait and 0 otherwise, then the sample mean is equivalent.

  How financial management decisions impact the organization

How financial management decisions impact the organization? The role of taxes in the different legal categories of business organization.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd