Let S 2 be the sample variance of a random sample from a distribution with variance
Question:
Let S2 be the sample variance of a random sample from a distribution with variance σ2 > 0. Since E(S2) = σ2, why isn’t E(S) = σ?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 100% (7 reviews)
Answered By
Ali Khawaja
my expertise are as follows: financial accounting : - journal entries - financial statements including balance sheet, profit & loss account, cash flow statement & statement of changes in equity -consolidated statement of financial position. -ratio analysis -depreciation methods -accounting concepts -understanding and application of all international financial reporting standards (ifrs) -international accounting standards (ias) -etc business analysis : -business strategy -strategic choices -business processes -e-business -e-marketing -project management -finance -hrm financial management : -project appraisal -capital budgeting -net present value (npv) -internal rate of return (irr) -net present value(npv) -payback period -strategic position -strategic choices -information technology -project management -finance -human resource management auditing: -internal audit -external audit -substantive procedures -analytic procedures -designing and assessment of internal controls -developing the flow charts & data flow diagrams -audit reports -engagement letter -materiality economics: -micro -macro -game theory -econometric -mathematical application in economics -empirical macroeconomics -international trade -international political economy -monetary theory and policy -public economics ,business law, and all regarding commerce
4.00+
1+ Reviews
10+ Question Solved
Related Book For
Introduction To Mathematical Statistics
ISBN: 9780321794710
7th Edition
Authors: Robert V., Joseph W. McKean, Allen T. Craig
Question Posted:
Students also viewed these Business questions
-
Let S2 be the variance of a random sample of size n from N(μ, Ï2). Using the fact that (n 1)S2/Ï2 is Ï2(n1), note that the probability Where Rewrite the inequalities to...
-
Let S 2 be the sample variance of a random sample of size n > 1 from N(, ), 0 < < , where is known. We know E(S 2 ) = . (a) What is the efficiency of S 2 ? (b) Under these conditions, what is the...
-
Let X1, X2,..., Xn be iid from a distribution with mean μ and variance Ï2, and let S2 be the usual unbiased estimator of Ï2. In Example 7.3.4 we saw that, under normality, the...
-
Kyoko is a hard-working college sophomore. One Thursday, she decides to work nonstop until she has answered 220 practice problems for her physics course. She starts work at 8:00 AM and uses a table...
-
Oscar Company is preparing its financial statements for the current year. Which of the following statements is correct? I. A main difference between the income statement and the statement of cash...
-
Modigliani and Miller (MM) on the one hand and Gordon and Lintner (GL) on the other hand have expressed strong views regarding the effect of dividend policy on a firms cost of capital and value. a....
-
Total Placement Service (TPS) issued \(\$ 600,000\) of \(20-\) year, \(7 \%\) bonds payable at maturity (par) value on February 1, 2008. The bonds pay interest each January 31 and July 31, and the...
-
Firemans Fund commissioned an online survey of 1,154 wealthy homeowners to find out what they knew about their insurance coverage. (a) When asked whether they knew the replacement value of their...
-
Beaver Inc. issues a 5,000,000 5-year, 8% fixed-rate interest note payable on December 31, 2022. Beaver Inc. is worried that interest rates may decrease which would increase the value of its debt so...
-
Consider the following account balance for ABC manufacturing company in the year 2004. Beginning balance End balance Direct material inventory $22,000 $26,000 WIP inventory 21,000 20,000 Finished...
-
If X is 2(5), determine the constants c and d so that P(c < X < d) = 0.95 and P(X < c) = 0.025.
-
Let X and Y have the parameters 1 , 2 , 2 1 , 2 2 , and . Show that the correlation coefficient of X and [Y ( 2 / 1 )X] is zero.
-
A market is in long-run equilibrium and firms in this market have identical cost structures. Suppose demand in this market decreases. Describe what happens to the market quantity as the market leaves...
-
Use the information below to answer the questions that follow. Enter your answers using digits only - no dollar signs, commas, or decimal points. The business's year-end is December 31. Cost of...
-
3. Given a hash table with size 7, a hash function hash (x) = x % 7, and keys 5, 7, 14, 1, 19, 21. (a) (5 points) Hash the keys using chaining to resolve collisions. Show your work. (b) (5 points)...
-
A 34-year-old male certified public accountant, has struggledwith being overweight since early childhood. His currentanthropometric measurements are: 61, 427 pounds. After months ofcareful...
-
You are taking out a car loan for $19,000, and you are given the options below. Find the monthly payment and the total amount of money you will pay for each loan in dollars. (Round your answers to...
-
A 250-pound (113.6-kg) football player participates in a twohour morning practice in warm conditions. Following the workout,the athletic trainer measures the players post practice bodyweight as 245...
-
True or false: If A has Jordan canonical form J, then A2 has Jordan canonical J2.
-
Two mutually exclusive investment alternatives are being considered. Alternative A requires an initial investment of $20,000 in a machine. Annual operating and maintenance costs are anticipated to be...
-
A boat has a crew of eight: Two of those eight can row only on the stroke side, while three can row only on the bow side. In how many ways can the two sides of the boat be manned?
-
Nine students, five men and four women, interview for four summer internships sponsored by a city newspaper. (a) In how many ways can the newspaper choose a set of four interns? (b) In how many ways...
-
Ten basketball players meet in the school gym for a pickup game. How many ways can they form two teams of five each?
-
What is the output of the following query? SELECT AVG(B_COST) FROM BOOK NATURAL JOIN CHECKOUT NATURAL JOIN STUDENT WHERE S_TYPE = 'PG' AND B_SUBJECT NOT IN ('CLOUD', 'DATABASE');
-
In its first month of operations, Carla Vista Company made three purchases of merchandise in the following sequence: (1) 240 units at $9, (2) 340 units at $11, and (3) 440 units at $12. Assuming...
-
What is the value printed by the following C program on the console window? #include #include int modify_value(int j); int main() int a = 0; int b = 0; a = 12 + rand() % 6; do { b =...
Study smarter with the SolutionInn App