FREE Trial
Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain

Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. The sample standard deviation is given below.

Margin of error equals

$3,

standard deviation equals

$22The required sample size is nothing

Round up to the nearest whole number as needed

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Linear Algebra and Its Applications

Linear Algebra and Its Applications

Authors: David C. Lay

4th edition

321791541, 978-0321388834, 978-0321791542

More Books

Students also viewed these Mathematics questions

Question

★★★★★
The shearing forces exerted on the cross section of a steel channel can be represented by a 900-N vertical force and two 250-N horizontal forces as shown. Replace this force and couple with a single...

Answered: 1 week ago

Question

★★★★★
3. Have you been involved with a company doing a redesign of its business processes? If so, what were the key things that went right? What went wrong? What could have been done better to minimize the...

Answered: 1 week ago

Question

★★★★★
On January 1, 2017, Fisher Corporation purchased 40 percent (80,000 shares) of the common stock of Bowden, Inc., for $982,000 in cash and began to use the equity method for the investment. The price...

Answered: 1 week ago

Question

★★★★★
A sample of 300 orders for take-out food at a local pizzeria found that the average cost of an order was $23 with s=$15. a) Find the margin of error for this result if you want a 95% confidence...

Answered: 1 week ago

Question

★★★★★
2. (12 points) Let R be the region bounded by za + y = 0, ta + ly = 1, ex - by= -1, Ex - by =0, Compute the double integral Ity dA. R

Answered: 1 week ago

Question

★★★★★
5. The first two columns of the accompanying table provide a frequency distribution, using limit grouping, for the days to maturity of 40 short-term investments. The third column shows the class...

Answered: 1 week ago

Question

★★★★★
Bobby bought a house for $275,000, by putting 15% down and borrowing the rest. His note is for 30 years at 7.5% interest. If his first payment is due August 1st of the current year, how much...

Answered: 1 week ago

Question

★★★★★
The best ways to prevent injury are to learn about the health risks that can lead to an injury, understand the consequences, and practice what you would do before you ever find yourself in a risky...

Answered: 1 week ago

Question

★★★★★
The following General Fund information is available for the preparation of the financial statements for the City of Eastern Shores for the year ended September 30, 2020: Revenues: Property taxes $...

Answered: 1 week ago

Question

★★★★★
Question 8. Below is the interior of the Horiba Scientific Fluoromax Spectrometer interior and a cuvette in which a sample is placed for measurement of its fluorescence. Draw the orientation of the...

Answered: 1 week ago

Previous Question Next Question