How large should the size of a random sample be so that we can be 90% certain

Question:

How large should the size of a random sample be so that we can be 90% certain that the sample mean X will not deviate from the true mean by more than σ/2?

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

Step by Step Answer:

Related Book For book-img-for-question

Mathematical Statistics With Applications In R

ISBN: 9780124171138

2nd Edition

Authors: Chris P. Tsokos, K.M. Ramachandran

See More Books

Question Posted: Nov 23, 2015 03:43 AM

See More Questions

An electronic component for a medical X-ray unit is produced in lots of size N = 25. An acceptance testing procedure is used by the purchaser to protect against lots that contain too many...
A fraction nonconforming control chart is to be established with a center line of 0.01 and two-sigma control limits. (a) How large should the sample size be if the lower control limit is to be...
Let 2 = 16 be the variance of a normal population from which a random sample is chosen. How large should the sample size be for testing H0: = 25 versus Ha: m = 24, in order that = 0.05 and = 0.05?
Julia Robertson is a senior at Tech, and she's investigating different ways to finance her final year at school. She is considering leasing a food booth outside the Tech stadium at home football...
11.14 Refer to Exercise 11.8. Which pairs of mean weekly sales differ signi cantly (4 stores)? Exercise 11.8 Sales of People magazine are compared over a 5-week period at four Borders outlets in...
A study was made of frequent fliers, and it was found that 53% had an income over $65,000 a year. a. Fifteen frequent fliers were selected at random, and their incomes recorded. What is the...
In a randomly selected sample of women ages 20 34, the mean total cholesterol level is 179 milligrams per deciliter with a standard deviation of 38.9 milligrams per deciliter. Assume the total...
An electrical resistor is connected to a battery, as shown schematically. After a brief transient, the resistor assumes a nearly uniform, steady-state temperature of 95C, while the battery and lead...
Mexican Peso Finanicial Statements Assests: Non Curent Assets $ 35,000,000.00 Current Assests $ 5,000,000.00 Total Assests $ 40,000,000.00 Equity $ 25,000,000.00 Non Current Liabilities $...
Creativity and design thinking are two contemporary decisionmaking issues that we introduced in the chapter. Were creativity and design thinking illustrated in this story? Discuss.
Find the smallest value of n in a binomial distribution for which we can assert that p(x,-p| <0.1) 20.se. p) < 0.1] >0.90 In
Let a fair coin be tossed n times and let Sn be the number of heads that turn up. Show that the fraction of heads, Sn/n, will be near to 1/2 for large n. What can we conclude if the coin is not fair?
In your own words, why are human relations skills important to you. How will they help you in your career?
In an alternative universe, the Australian Dollar (AUD) is a fixed-rate currency. The Australian Reserve Bank decided to revalue the Australian Dollar by 17% relative to the previous rate of...
Data from the current year-end balance sheets Assets Cash Accounts receivable, net Merchandise inventory Prepaid expenses Plant assets, net Total assets Liabilities and Equity Current liabilities...
Two point charges lie on the x axis. A charge of +2.60 PC is at the origin, and a charge of 4.80 pC is at x = -13.0 cm Part A What third charge should be placed at x = +20 cm so that the total...
TB MC Qu. 5-165 (Algo) On August 1, 2024, a company lends cash and accepts...\ On August 1, 2024, a company lends cash and accepts a $16,000 note receivable that offers 8% interest and is due in nine...
Write informal negations of each statement. a. "Some dogs are unfriendly." b. "All cats love dogs." c. "All mice fear cats." d. "There is a mouse that loves a cat."
In Problems 2025, solve each system of equations using matrices. If the system has no solution, state that it is inconsistent. x = y + z = 0 - y5z - 60 2x2y+z1 = 0
Clark, PA, has been engaged to perform the audit of Kent Ltd.s financial statements for the current year. Clark is about to commence auditing Kents employee pension expense. Her preliminary enquiries...
The steps in this exercise lead to the probability density function of an Erlang random variable X with parameters and r, f(x) = r xr1 e /(r 1) !, x > 0, r = 1, 2, . .. (a) Use the Poisson...
A bearing assembly contains 10 bearings. The bearing diameters are assumed to be independent and normally distributed with a mean of 1.5 millimeters and a standard deviation of 0.025 millimeter. What...
Let the random variable X denote a measurement from a manufactured product. Suppose the target value for the measurement is m. For example, X could denote a dimensional length, and the target might...
On March 31, 2023, Panda Co. assessed its assets for impairment as part of its year-end procedures. It was found that equipment had a recoverable value of $15,000, a remaining useful life of three...
Petty's comparative balance sheets at December 31, 2020, and December 31, 2019, report the following (in millions). (Click the icon to view the comparative balance sheets.) Requirements Below are...
Suppose the correlation between the stock euro returns of Siemens and the USD/EUR exchange rate is 0.2. The standard deviation of the USD/EUR is 10% and the standard deviation of Siemens's stock euro...

How large should the size of a random sample be so that we can be 90% certain

Question:

Step by Step Answer:

Apply Chebyshevs th...View the full answer

Mathematical Statistics With Applications In R

Students also viewed these Statistics questions