Percent confidence interval for the population mean

Assignment Help Basic Statistics
Reference no: EM1398020

A recent survey of 50 executives who were laid off durning a recent recession 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 ? Justisfy your answer.

Reference no: EM1398020

Questions Cloud

Calculate the total transportation cost : Compute the total "load-distance" LD score for the current solution, and then try to find an improved layout and calculate the total transportation cost.
Is chromatography a valid method : Is chromatography a valid method for identifying amino acids from an unknown mixture like serum? Wht or why not.
Write the difference between correlation and causation : Write down the difference between correlation and causation. How would results of this survey be used in workplace?
Post translational modification in the er : Which of the following is NOT the way proteins are transported through the Golgi? Clathrin-coated vesicles bud from the ER and fuse with the Golgi.
Percent confidence interval for the population mean : A recent survey of 50 executives who were laid off durning a recent recession 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..
Assignment of estimating the mean net weight of packages : A state meat inspector in lowa 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.
Explain workplace ethical dilemma : Workplace Ethical Dilemma Paper Write down 1,050 word paper dealing with workplace ethical dilemma which either you have experienced personally or with which you are otherwise familiar.
Find the specific activity of iptg induced culture : The specific activity of an enzyme is defined as the units of enzyme per milligram of protein. For E. coli, we can estimate the amount of protein in an extract by assuming there are 150 ug of protein per 10^9 cells and an A600 of 1.4 is equivalent to..
Confidence interval for the mean number of misspelled words : Construct a 95 percent confidence interval for the mean number of misspelled words in the population of student essays.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Ratio level of scaling

Which of the examples below represent the Ratio level of scaling?

  Difference in mean number of surgeries

Can we conclude there is a difference in mean number of surgeries performed by hospital or by day of week?

  Descriptive statistics-computation and analysis

A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations.

  Time series plot for commodity futures index

Construct a time series plot. What type of pattern exists in the data? Compute the exponential smoothing forecasts for a = .2.

  General population of adults in united states

Dr. Bundy recently earned permission from the warden of a local prison to use prisoners to study the effects of the drug Zoloft on depression.

  Distribution of systolic blood pressure

The systolic blood pressure of a group of 18-year-old women is basically distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg.

  Computing probability of failure of system

Find the probability of failure of system for any 4 hours of operation?

  Tandard deviation of light bulb lifetime

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?

  What is the margin of error

would you favor or oppose providing a path to citizenship for illegal immigrants in the U.S if they met certain requirement including a waiting period, paying fines and back taxes, passing criminal background checks and learning English? What is the ..

  Expected value for the distribution of sample means

If random samples, each with n = 9 scores, are selected from a normal population with  µ = 80 and σ = 36, then what is the expected value for the distribution of sample means?

  Evaluating correlation articles

Search the library for a scholarly journal article of a study that presents the results using correlation analysis. Summarize the article, explain how the correlation was used, and the value of correlation analysis.

  Probability based on relative-frequency

Find out the expected winnings for a person who buys one ticket.

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