Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A researcher believes that the average size of farms in the U.S. has increased from the 2002 mean of 471 acres. She took a sample of 23 farms in 2011 to test her belief and found a sample mean of 498.8 acres and a sample standard deviation of 46.9 acres. At a 5% levelof significance, test the researcher's claim. What is your conclusion? 2. A study by Hewitt Associates showed that 79% of companies offer employees flexible scheduling. Suppose a researcher believes that in accounting firms this figure is lower. The researcher randomly selects 415 accounting firms and determines that 310 of these firms have flexible scheduling. At a 1% level of significance, does your test show enough evidence to conclude that a significantly lower percentage of accounting firms offer employees flexible scheduling? What is the p-value for this test? 3. The American Lighting Company developed a new light bulb that it believes will last at least 700 hours on average. A test is to be conducted using a random sample of 100 bulbs, and a 5% level of significance. Assume that the population standard deviation is 15 hours. What are the consequences of making a type II error? What is the probability of making a Type II error if the true population mean is 695 hours?
Obtain standard errors of your estimates in part (a) using the Wild bootstrap with and using the bootstrap (with B = 9; 999) test H0 : 2 = 0 vs. H0 : 2 = 0 at the 5% level.
The construction of a dam will cost $1,000 at time 0, $500 in year 1, $500 in year 2. It will be completed at the end of year 2. Beginning in year 3, maintenance costs will be $100 per year through year 10. From years 11 on, maintenance costs will..
X and Y are two random variables. The average value of X is 40,000 and X has a standard deviation of 12,000. The average value of Y is 45,000 and the standard deviation of Y is 18,000. The correlation between X and Y is 0.80.
Calculate a 5-year weighted moving average to forecast the number of mergers for 2012. Use weights of 0.10, 0.15, 0.20, 0.25, and 0.30, with the most recent year weighted being the largest. Use regression analysis to forecast the number of mergers..
Setup a two-variable regression model (i.e. write down the PRF) to examine the impact of per capita disposable income on real per capita gasoline expenditures.
Michael, Inc., a manufacturer of electric guitars, is a small firm with 50 employees. a. How many employees receive hourly wages of at least $18? b. What percentage of the employees has hourly wages of at least $18? c. What percentage of the employee..
The weights of a population of parts made by a certain machine are normally distributed with a mean of ten pounds and a standard deviation of two pounds. What is the probability that a part of drawn at random from the machine weighs between 8 and..
A monopoly is considering selling several units of a homogeneous product as a single packge. A typical consumer's demand for the product is Qd= 110-0.5P, and the marginal cost of product is 140. A. Determine the optimal number of units ot put in a..
Assume that the price index is one hundred and a typical basket of goods and services cost $8. Within the basket, you had four hamburgers and 3 hot dogs.
adding a turning lane to a busy intersection will cost 2 million dollars, but it is estimated that it will save motorists a total of 300000 dollars a year for the next 10 years. a government agency wants to know if the annual benefits outweight ..
If an investor deposits $1000 now, $3000 three years from now, and $600 per year for 5 years starting 4 years from now, how much money can be withdrawn every year forever beginning 12 years from now, if the rate of return on the investment is 8%.
(a) Computer nominal GDP, real GDP, and the GDP Deflator for each year using 2005 as base year (b) Compute the percentage change in nominal GDP, real GDP, and the GDP Deflator in 2006 and 2007 from the perceeding year. For each year, identify the var..
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd