What are the expected value and the standard deviation of the sample proportion P-hat if the true

Question:

What are the expected value and the standard deviation of the sample proportion P-hat if the true population proportion is 0.2 and the sample size is n = 90?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Complete Business Statistics

ISBN: 9780077239695

7th Edition

Authors: Amir Aczel, Jayavel Sounderpandian

See More Books

Question Posted: Jun 03, 2015 05:52 AM

See More Questions

The mean and the standard deviation of the sample of 40 trash bag breaking strengths are 50.575and s= 1.6438. a. What does the histogram in Figure 2.17 (page 52) say about whether the Empirical Rule...
The mean and the standard deviation of the sample of 40 trash bag breaking strengths are and = 50.575 and s = 1.6438. a. What does the histogram in Figure 2.17 say about whether the Empirical Rule...
The mean and the standard deviation of the sample of 100 bank customer waiting times are and = 42.95 and s = 2.475. a. What does the histogram in Figure 2.16 say about whether the Empirical Rule...
Following the 2017 General Election and change of government, the Labour-led coalition government established a Tax Working Group (TWG) to consider the overall structure, balance and fairness of the...
A village has six residents, each of whom has accumulated savings of $100. Each villager can use this money either to buy a government bond that pays 15 percent interest per year or to buy a year-old...
Analyse and explain how the following situation would affect the audit report for the financial year ended on 31 December 2020, assuming you are the audit partner of Coffee Infusion Ltd, Coffee...
2. Describe how analyst projections of cyclical company profits compare with actual performance.What are the possible reasons for the deviation?
EZPAK Manufacturing produces filament packaging tape. In 2010, EZPAK Manufacturing produced and sold 15 million rolls of tape. The company has recently expanded its capacity, so it can now produce up...
This problem is for the 2018 tax year. Alice J. and Bruce M. Byrd are married taxpayers who file a joint return. Their Social Security numbers are 123-45-6789 and 111-11-1112, respectively. Alice's...
Roadrunner Bookstore uses the perpetual inventory system, Roadrunner Bookstore is owned by Tina Smith. The company had the following transactions for the month of April. Apr 1 Apr 2 Apr 3 Apr 5 Apr 7...
When sampling is for a population proportion from a population with actual proportion p = 0.5, using a sample of size n = 120, what is the standard deviation of our estimator P-hat?
For a fixed sample size, what is the value of the true population proportion p that maximizes the variance of the sample proportion P-hat?
Two people, A and B, walk along the parabola y = x 2 in such a way that the line segment L between them is always perpendicular to the line tangent to the parabola at As position. What are the...
1. Mainland purchased a machine for $85,000 on 1 January 20x7 and assigned it a useful life for 10 years. On 31 March 20x9 it was revalued to $93,000 with no change in useful life. Complete the table...
Find the equation of the regression line and identify a characteristic of the data that is ignored by the regression line X 10 8 13 9 11 14 6 4 12 7 5 Y 7.46 6.77 12.74 7.11 7.81 8.84 6.08 5.39 8.15...
For each of the following independent cases, fill in the missing amounts in the table: (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable.) Case Direct Labor...
All views expressed in this paper are those of the authors and do not necessarily represent the views of the Hellenic Observatory or the LSE George Alogoskoufis Greeces Sovereign Debt Crisis:...
Current Attempt in Progress Nash Company is constructing a building. Construction began on February 1 and was completed on December 31. Expenditures were $1,812,000 on March 1, $1,212,000 on June 1,...
Air approaches a normal shock at $M_{1}=2.5$, with $T_{0_{1}}=1250^{\circ} \mathrm{R}$ and $p_{1}=20$ psia. Determine the speed and temperature of the air leaving the shock and the entropy...
Kenneth Hubbard has prepared the following list of statements about managerial accounting and financial accounting. 1. Financial accounting focuses on providing information to internal users. 2....
The StokesOseen formula for the resistance on the sphere at low-speed V is where D = sphere diameter, = viscosity, = density. Prove that the dimensions of both sides of the formula equal sign are...
Another measure of variation is the mean absolute deviation. It is computed using the formula Compute the mean absolute deviation of the data in Problem 11 and compare the results with the sample...
Karl Pearson developed a measure that describes the skewness of a distribution, called the coefficient of skewness. The formula is Skewness = 3(mean median) /standard deviation The value of this...
A popular theory in investment states that you should invest a certain amount of money in foreign investments to reduce your risk. The risk of a portfolio is defined as the standard deviation of the...
Minden Company introduced a new product last year for which it is trying to find an optimal selling price. Marketing studies suggest that the company can increase sales by 5,000 units for each $2...
Prepare the adjusting journal entries and Post the adjusting journal entries to the T-accounts and adjust the trial balance. Dresser paid the interest due on the Bonds Payable on January 1. Dresser...
Venneman Company produces a product that requires 7 standard pounds per unit. The standard price is $11.50 per pound. If 3,900 units required 28,400 pounds, which were purchased at $10.92 per pound,...

What are the expected value and the standard deviation of the sample proportion P-hat if the true

Question:

Step by Step Answer:

E p 0...View the full answer

Complete Business Statistics

Students also viewed these Statistics questions