Let S2 be the variance of a random sample of size n from N(μ, Ï2). Using the
Question:
Where
Rewrite the inequalities to obtain
If n = 13 and
Show that [6.11, 24.57] is a 90% confidence interval for the variance Ï2. Accordingly, [2.47, 4.96] is a 90% confidence interval for Ï.
Transcribed Image Text:
a = χ2-a/2(n-1 ) and b = X2/2 (n-1 ). P (n-1)S2 < σ2 < (n-1)S2 = 1-α. 125-= Σ21 (xi-x)-= 128.41.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 46% (15 reviews)
Pa n 1S 2 2 b 1 Pn 1S 2 b 2 n 1S 2 a 1 Letting a X 2 12 n ...View the full answer
Answered By
Aysha Ali
my name is ayesha ali. i have done my matriculation in science topics with a+ . then i got admission in the field of computer science and technology in punjab college, lahore. i have passed my final examination of college with a+ also. after that, i got admission in the biggest university of pakistan which is university of the punjab. i am studying business and information technology in my university. i always stand first in my class. i am very brilliant client. my experts always appreciate my work. my projects are very popular in my university because i always complete my work with extreme devotion. i have a great knowledge about all major science topics. science topics always remain my favorite topics. i am also a home expert. i teach many clients at my home ranging from pre-school level to university level. my clients always show excellent result. i am expert in writing essays, reports, speeches, researches and all type of projects. i also have a vast knowledge about business, marketing, cost accounting and finance. i am also expert in making presentations on powerpoint and microsoft word. if you need any sort of help in any topic, please dont hesitate to consult with me. i will provide you the best work at a very reasonable price. i am quality oriented and i have 5 year experience in the following field.
matriculation in science topics; inter in computer science; bachelors in business and information technology
_embed src=http://www.clocklink.com/clocks/0018-orange.swf?timezone=usa_albany& width=200 height=200 wmode=transparent type=application/x-shockwave-flash_
4.40+
11+ Reviews
14+ Question Solved
Related Book For
Probability and Statistical Inference
ISBN: 978-0321923271
9th edition
Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
Question Posted:
Students also viewed these Statistics questions
-
The claim that the variance of a normal population is 2 = 25 is to be rejected if the variance of a random sample of size 16 exceeds 54.668 or is less than 12.102. What is the probability that this...
-
The claim that the variance of a normal population is 2 = 4 is to be rejected if the variance of a random sample of size 9 exceeds 7.7535. What is the probability that this claim will be rejected...
-
A researcher claims that she can reduce the variance of N(,100) by a new manufacturing process. If S2 is the variance of a random sample of size n from this new distribution, she tests H0: 2 = 100...
-
Yang Company purchased 2,000 widgets and has 400 widgets in its ending inventory at a cost of $90 each and a current replacement cost of $80 each. The net realizable value of each unit in the ending...
-
The Polozzi Trust will incur the following items in the next tax year, its first year of existence. Interest income .............. $ 25,000 Rent income ................. 100,000 Cost recovery...
-
What are the various ways the SBA helps small businesses?
-
Chase Publishing was disappointed with the financial textbook and decided to purchase the trademark from a well-known record store for $\$ 250,000$. How can the cost of the trademark be accounted for...
-
Your investment department has researched possible investments in corporate debt securities. Among the available investments are the following $100 million bond issues, each dated January 1, 2011....
-
Suppose p(x) and q(x) are polynomials with real (or complex) coefficients with 0 deg(q(x)) deg(p(x)). Moreover, suppose there is no polynomial r(x) for which p(x) = q(x)r(x). Setting so(x)= q(x),...
-
Favreau Corporation wholesales repair products to equipment manufacturers. On April 1, Year 1, Favreau Corporation issued $35,000,000 of five-year, 7% bonds at a market (effective) interest rate of...
-
Let X1, X2, ... , Xn be a random sample of size n from the normal distribution N(, 2). Calculate the expected length of a 95% confidence interval for , assuming that n = 5 and the variance is (a)...
-
A random sample of size 8 from N(, 72) yielded = 85. Find the following confidence intervals for : (a) 99%. (b) 95%. (c) 90%. (d) 80%.
-
Why is identifying a target market so important to a company?
-
Software Associates (SA) is a computer software consulting firm that specializes in designing and implementing integrated marketing database warehousing programs. Humphrey Catalog is a client. In...
-
Define CSR.
-
Giza Farms in Cairo, Egypt, has a corporate headquarters staff and three operating divisions: consulting services, chemicals, and agricultural products. Giza is considering allocating 160 million...
-
Increased global competition has spurred most firms to take a hard look at their costs and become lean and mean. Rochco, a large industrial complex, has seen offshore competition erode its market...
-
Explain the benefits that ought to be yielded when public investments are used for road construction.
-
The sum of an arithmetic series with 20 terms is 610. If a 20 = 59, find a 1
-
During 2012, Cheng Book Store paid $483,000 for land and built a store in Georgetown. Prior to construction, the city of Georgetown charged Cheng $1,300 for a building permit, which Cheng paid. Cheng...
-
Anthony Papantonis, owner of Nauset Construction, is bidding on two projects, A and B. The probability that he wins project A is 0.40 and the probability that he wins project B is 0.25. Winning...
-
Since the fall of 2008, millions of Americans have lost jobs due to the economic meltdown. A recent study shows that unemployment has not impacted males and females in the same way (Newsweek, April...
-
How much you smile in your younger days can predict your later success in marriage (msnbc.com, April 16, 2009). The analysis is based on the success rate in marriage of people over age 65 and their...
-
Jackie Co., a 90% owned subsidiary of Nick Inc., sold land to Nick on May 1, 2024, for $80,000. The land originally cost Jackie $85,000. Jackie reported net income of $200,000, $180,000, and $220,000...
-
The most recent financial statements for AppleBanana Co. are shown here: Income Statement Sales Costs Balance Sheet $ 200,000 130,000 Current assets Fixed assets $ 120,000 280,000 Debt Equity $...
-
With reference to the characteristics and performance of the human visual system, provide an estimate for each of the following. In each case you are expected to justify your estimate: (i) the...
Study smarter with the SolutionInn App