A survey of 20 items in a sales ledger has a mean value of 100 and standard
Question:
A survey of 20 items in a sales ledger has a mean value of €100 and standard deviation of €20. What is the 95% confidence interval for the population of items? What is the 99% confidence interval?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 75% (12 reviews)
x 100 and s 20 With a small sample 20 we have to u...View the full answer
Answered By
Lilian Nyambura
Hi, am Lilian Nyambura, With extensive experience in the writing industry, I am the best fit for your writing projects. I am currently pursuing a B.A. in Business Administration. With over 5 years of experience, I can comfortably say I am good in article writing, editing and proofreading, academic writing, resumes and cover letters. I have good command over English grammar, English Basic Skills, English Spelling, English Vocabulary, U.S. English Sentence Structure, U.K. or U.S. English Punctuation and other grammar related topics. Let me help you with all your essays, assignments, projects, dissertations, online exams and other related tasks. Quality is my goal.
4.80+
378+ Reviews
750+ Question Solved
Related Book For
Question Posted:
Students also viewed these Statistics questions
-
A 99% confidence interval for a population mean based on a sample of size 64 is computed to be (16.3, 18.7). How large a sample is needed so that a 99% confidence interval will specify the mean to...
-
A 95% confidence interval for a population mean was reported to be 152 to 160. If = 15, what sample size was used in this study?
-
A 95% confidence interval for a population mean was reported to be 152 to 160. If = 15, what sample size was used in this study?
-
Roberto finishes a triathlon (750-meter swim, 5-kilometer run, and 20-kilometer bicycle) in 63.2 minutes. Among all men in the race, the mean finishing time was 69.4 minutes with a standard deviation...
-
Find each limit (a) Limx1- sin-1 x (b) Limx1+ sin-1 x
-
(a) In Example 12.7, does the force of static friction exerted on the rear wheel cause a torque on the wheel? If so, in which direction? If not, why not? (b) In what direction is the sum of the...
-
The center post B of the assembly has an original length of 124.7 mm, whereas posts A and C have a length of 125 mm. If the caps on the top and bottom can be considered rigid, determine the average...
-
Eric Inman and Darcy Getz are both cash register clerks for Farmer Johns Markets. Nancy McNeil is the store manager for Farmer Johns Markets. The following is an excerpt of a conversation between...
-
The Defendent loves plants. She developed an interest in hydroponics and hybridizing plants and began growing plants under full-spectrum sunlight lamps in her home. She also has a teenaged son who...
-
Consider a database that consists of the following relations. SUPPLIER(Sno, Sname) PART(Pno, Pname) PROJECT(Jno, Jname) SUPPLY(Sno, Pno, Jno) The database records information about suppliers, parts,...
-
BC's quality assurance programme chooses a random sample of 50 units and finds that 12 are defective. What is the number of defectives they can be 95% confident that the population mean is below?...
-
The time taken for a sample of eight pieces of equipment to do a task has a mean of 52 minutes and a standard deviation of 18 minutes. What is the 90% confidence interval for the mean time of all the...
-
Refer to the financial statements of Urban Outfitters given In Appendix C at the end of this book At the bottom of each statement, the company warns readers that The accompanying notes are an...
-
It is hard to overstate the GDPR's impact - it's been an influential law around the globe. A few U.S. states - including California, Colorado, and Virginia - have enacted comprehensive privacy...
-
While I can't agree that restructuring the entire police system is a must (I wish you would have explained what that means). The is always room for improvement. As far as the "defund the police"...
-
Use the 2006 ULLCA (last amended 2013) or this text to answer the following questions. Jackson Real Estate Enterprises is a very large real estate company in Texas with four separate divisions, each...
-
Nguyen Ltd. manufactures condensers for air conditioning systems. Nguyen is considering using a thin coating of graphene on each condenser. The graphene is quite expensive. What type of cost would...
-
Luca is in finance and likes to stretch the payments towards his bill just before the due dates to not incur interest charges or late payment fees. He gets a kick out of doing this. Luca's credit...
-
Suppose an RPC request is of the form increment the value of field X of disk block N by 10%. Specify a mechanism to be used by the executing server to guarantee that an arriving request is executed...
-
A red card is illuminated by red light. What color will the card appear? What if its illuminated by blue light?
-
This experiment has two mutually exclusive events, \(A\) and \(\bar{A}\), that form a partition of the sample space \(S\). The number of elements in each set is shown in each region. Find the...
-
Most investors are happy when their returns are above average, but not so happy when they are below average. In the Markowitz portfolio optimization model in Problem 14, the objective function is to...
-
Most investors are happy when their returns are above average, but not so happy when they are below average. In the Markowitz portfolio optimization model in Problem 14, the objective function is to...
-
This problem requires a basic understanding of the normal probability distribution. Investors are often interested in knowing the probabilities of poor returns. For example, for what cutoff return...
-
J is going to receive a 30-year annuity of 8,500 and L is going to receive perpetuity of 8,500. If the appropriate interest rate is 6%, how much more is L's cash flow worth?
-
. Assume that over the past 88 years, U.S. Treasury bills had an average return of 3.5% as compared to 6.1% on long-term government bonds. What was the average risk premium on the long-term...
-
The following data were gathered to use in reconciling the bank account of Bradford Company: Balance per bank $ 18,050 Balance per company records 10,040 Bank service charges 50 Deposit in transit...
Study smarter with the SolutionInn App