A recent survey of 50 executives who were laid off from

Assignment Help Basic Statistics
Reference no: EM13240660

A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 weeks. Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.

Reference no: EM13240660

Questions Cloud

Why might the sample data not follow a normal : From her firm’s computer telephone log, an executive found that the mean length of 64 telephone calls during July was 4.48 minutes with a standard deviation of 5.87 minutes.
State the macro scale procedure and any other necessary data : Using the quantities 3 grams of salicylic acid and 6ml of acetic anhydride noted in the macro scale procedure and any other necessary data, calculate the theoretical yield in moles and grams of aspirin.
Test the correlation coefficient for significance : Below are fertility rates (average children born per woman) in 15 EU nations for 2 years. (a) Make a scatter plot. (b) Find the correlation coefficient and interpret it.
Explain the object contains un-equal masses of the materials : A solid object is made of two materials, one material having density of 2.4 g /cm3 and the other having density of 8.6 g/cm3. If the object contains un-equal masses of the materials (75/25), what is its average density
A recent survey of 50 executives who were laid off from : A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position.
Estimating the mean net weight of packages of ground : A state meat inspector in Iowa has been given the assignment of estimating the mean net weight of packages of ground chuck labeled “3 pounds.” Of course, he realizes that the weights cannot be precisely 3 pounds. A sample of 36 packages reveals the m..
What is the radius of the plates : A parallel plate capacitor with 4.0 mm plate spacing has circular plates and holds a charge of +/- 6 uC on each plate when it is charged to a potential of 100 V. What is the radius of the plates
Explain what is the resonance structure of the sno+1 ion : What is the resonance structure that best describes the overall structure of the SNO+1 ion
As a condition of employment fashion industries applicants : As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 220 applicants 14 failed the test. Develop a 99 percent confidence interval for the proportion of applicants that fail the test. Would it be reasonable.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Calculating three-period moving average

Calculate a 3-period moving average for period 7. Compute the MAD of the forecast.

  Confidence interval for variance and standard deviation

Find the 90% confidence interval for the variance and standard deviation for the time it takes a state police inspector to check a truck for safety if a sample of 27 trucks has a standard deviation of 6.8 minutes.

  Proportion of the area under the standard curve

In your opinion does one do a better job or representing the proportion of the area under the standard curve?

  Expected standard deviation of portfolio

Calculate the expected value of your portfolio and calculate the expected standard deviation of your portfolio.

  Hypothesis testing-dual degree students

The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students. Two independent random samples have been selected.

  Explaining strong negative correlation

When calculating correlation coefficient, what does a value of -2 indicate? Strong negative correlation, Weak negative correlation.

  Create confidence interval for difference in mean hdl levels

Generate a 95% confidence interval for the difference in mean HDL levels between men when exercise regularly and those who do not.

  Determining equations from word problems

For 1989 and 1990 Dave Johnson had the highest decathlon score in the world. When Johnson reached a speed of 32 ft/sec on the pole vault runway, his height above the ground t seconds after leaving the ground was given by h= -16t^2+32t.

  Information about algebra practice problems

Determine whether the sentence is statement. Please justify. Write a negation of the inequality.Do not use a slash sign. Answer must be written as an equality.

  Knowledge about confidence interval for mean

Merrill Lynch Securities and Health Care Retirement, Inc., are two large employers in downtown Toledo, Ohio. They are considering jointly offering child care for their employees.

  Fitting of simple linear regression equation

Fitting of simple linear regression equation - A researcher wishes to determine whether a person's age is related to the number of hours he or she jogs per week.

  Accurate samples and unbiased results

How can we be certain that surveys and statistics that we hear about in the media are accurate samples and unbiased? Is there a way to dissect the information and determine if a probability sample was used?

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