Estimate the true mean number of years to retirement

Assignment Help Basic Statistics
Reference no: EM13142936

what is the minimum number of employees that should be sampled by the Exxon corporation if it wishes to estimate the true mean number of years to retirement of its employees to within one month of the true mean and with 90% confidence if the range of the data is 7 years?

Reference no: EM13142936

Questions Cloud

Current literature regarding the implementation : A brief review (500 words) of the current literature regarding the implementation and benefits of Applied Behavioral Analysis in sports/athletics
Analysis of cytochrome oxidase gene sequence : Phylogeny The phylogeny below was built using parsimony analysis of the cytochrome oxidase gene sequence. The scientists who built it were interested in determining the relationships between species A, B, and C. Explain:
How much interest will be paid annually on these bonds : Ariel, Inc., issued $30 million face amount of 9% bonds when market interest rates were 9.30% for bonds of similar risk and other characteristics. How much interest will be paid annually on these bonds?
Gain or loss and basis in the land and inventory : William's basis in the WAM Partnership interest was $100,000 just before he received a proportionate liquidating distribution consisting of investment land (basis of $30,000, fair market value $40,000), and inventory (basis of $30,000, fair market..
Estimate the true mean number of years to retirement : True mean number of years to retirement of its employees to within one month of the true mean and with 90% confidence if the range of the data is 7 years?
After years of hard work : After years of hard work, Dave becomes a member of the U.S. ski team. He has always set outcome goals for himself: becoming the fastest skier in his local club, winning regional races, beating arch-rivals, and placing at nationals.
Is the system at equilibrium : The equilibrium constant, Kp , for the reaction CO(g) + H2O(g)-> CO2(g) + H2(g) at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor
Looking for information on organizational culture : Looking for information on organizational culture in the workplace. Example: how its started, how to change it, etc.
What journal entry is required by job : Nojob issues 5,000 previously unissued shares of common stock in the market for $50 per share. Assume outsiders buy the stock. What journal entry is required by Job?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Verify sample mean using calculator with mean

Use a calculator with mean and standard deviation keys to verify that the sample mean is x = 5.63 pups with the sample standard deviation s = 1.78 pups. (b) Find a 75% confidence interval for the population.

  Determining standard error of the mean

A random sample of 50 households revealed a mean of $112,000 and a standard deviation of $40,000. What is the standard error of the mean?

  P-value for various values of test statistic

Assuming that these are a random sample of all publicly traded companies, construct a 95% confidence interval for the overall noncompliance proportion.

  Type of ticket or flight-independent or not

The data obtained are shown in the Excel worksheet Problem 4 and below. You are to test to determine if the type of ticket and the type of flight are independent or not. Use alpha = .05

  Confidence interval-mean salary of google managers

A random sample a 16 Google managers yield the following information on annual salaries. The sample mean is $69,000, with a sample standard deviation of $4,000. What is the mean salary of all Google managers?

  Is the anova appropriate

Iindicate all samples are approximately Normal with no outliers. Is the ANOVA appropriate?

  Polling organizations conduct polls

Gallup Polls When Gallup and other polling organizations conduct polls, they typically contact subjects by telephone. In recent years, many subjects refuse to cooperate with the poll.

  Probability that at most five defective bolts will be in box

Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective.

  Which p-value will reject the null hypothesis

Scientist does n ot believe that water ph is 7. She wants to test the null hypothesis that the true level of ph is 7 at the .05 significance level. Her alternative hypothesis is that the water does not have a ph of 7. Which p-value will she reject..

  Find average weight be if production manager has products

What should the average weight be if the production manager wants no more than 6% of the products to weigh more than 7.4 ounces?

  Explain pearson coefficient and chi square research study

Post a behavioral research situation that could use a Pearson coefficient research study and a chi square research study to the Discussion Area.

  Description of multiple regression model

Describe how multiple correlation and/or regression analysis is (or could be) applied in your work or life environments. Define the dependent and independent variables.

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