How could calculating a z help in a business situation

Assignment Help Basic Statistics
Reference no: EM13157633

Give an example from everyday life where you could use the Normal distribution to determine the probability of something.

What is a z score and how could calculating a z help you in a business situation?

How does a box plot relate to the normal distribution? In what ways are they similar? In what ways are they different?

When working with the normal distribution to find probabilities, we often have to subtract the probability value that we found in the table from .5. Why do we do this? What is a good way to remember when to subtract from .5 or not?

Some teachers grade on a curve using the normal distribution to even out the scores. What do you think of this practice?

Reference no: EM13157633

Questions Cloud

Mr. john estes oversees the distribution : Mr. John Estes oversees the distribution of Tastee Snacks products from the plant warehouse to its two distribution centers in the United States. The plant warehouse currently has 42,000 units of the company's most popular product, Chocolate Chewies.
Compare the variance of the estimator of the slope term : Suppose that classical least squares assumptions apply and the true value of intercept term or is 0 in following model: yi=alpha + beta xi + epsilon i, Now estimate this model with and without an intercept term and compare the variance of the est..
Explain the constructive receipt doctrine : Explain the Constructive Receipt Doctrine. What role does the U.S. Congress play in creating the tax law? Briefly explain how a tax bill becomes a tax law.
What is the probability that they will have a color-blind : Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color blind.
How could calculating a z help in a business situation : Give an example from everyday life where you could use the Normal distribution to determine the probability of something. What is a z score and how could calculating a z help you in a business situation?
How many male workers will be hired : firm discriminates against females with a discrimination coefficient of 1.7. How many male workers will be hired?
Why people must be vaccinated once a year for influenza : What is the best reason why people must be vaccinated once a year for influenza?
Define the terms race and racism : Define the terms race and racism. What are some of the problems with the concept of "race" that lead most scientists to say that it is not a biologically meaningful concept?
Which describes nature of the centromere after the s phase : Which statement best describes the nature of the centromere after the S phase.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Proportion of adults planning on buying car

A marketing research firm wishes to estimate the proportion of adults who are planning to buy a new car in the next 6 months. A simple random sample of 100 adults led to 22 who were planning to buy a new car in the next 6 months.

  Determining rising costs

Faced with rising FAX costs, a firm issued a guideline that transmissions of 10 or more should bw sent by 2-day mail instead. Wxceptions are allowed, but they want the average to be 10 or below.

  Description of chebyshev theorem

Chebyshev's Theorem states that the percentage of observations in a data set that should fall within five standard deviations of their mean is

  Computing t value and global f ratio

Is global F ratio significant? Identify this F ratio, and describe whether it is important.Is coefficient for X1 (productivity) significant?  How do you know?  Mention its t value and accompanying P-value.

  What is the z-score and p-value

The Weschsler IQ test has a μ =100 and a σ = 15. A vitamin company said if people took vitamin X for 30 days their IQ would improve. A simple random sample of 49 people took the vitamins for 30 days. They then took the IQ test. The mean IQ of the ..

  Sample size assessment by standard deviation-margin of error

How many departments would they need to survey to achieve this level of accuracy with 95% confidence?

  Essential to many research designs

Discuss why sampling is essential to many research designs, and why, if done correctly may be more accurate than attempting census measurement.

  Find probability that half of obese will develop diabetes

Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese, a) What is the probability that half of them will develop diabetes?

  Probability depends on relative frequency

Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?

  Identify problem by scientifically crafted research proposal

Profitability at a bank is declining as customers are shifting to other banks. As a researcher, identify the problem (root cause of the symptom) through a scientifically crafted research proposal.

  Interpretation of error term and goodness of fit regression

Consider the following estimated regression equation, based on 10 observations.

  Levels in hopes of improving engine horsepower

A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horse..

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!

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