BuyFind

Essentials Of Statistics

4th Edition
HEALEY + 1 other
Publisher: Cengage Learning,
ISBN: 9781305093836
BuyFind

Essentials Of Statistics

4th Edition
HEALEY + 1 other
Publisher: Cengage Learning,
ISBN: 9781305093836

Solutions

Chapter
Section
Chapter 6, Problem 6.10P
Textbook Problem
519 views

PA
A random sample of 260 workers in a high-rise office building revealed that 30% were very satisfied with the quality of elevator service. At the 99% level, what is your estimate of the population value?

Expert Solution
To determine

The estimate the population value using the 99% confidence level

Explanation of Solution

Given Information:

A random sample of 260 workers in a high-rise office building revealed that 30% were very satisfied with the quality of elevator service.

Ps=0.30N=260

Formula used:

Confidence interval for a sample proportion (large sample) is given by,

c.i.=Ps±ZPu(1Pu)N

Calculation:

The value of statistic at 99% level of significance is given as,

Z0.01=2.58

Substitute 0.30 for Ps, 2.58 for Z, 0.5 for Pu and 260 for N in the above mentioned formula,

Want to see this answer and more?

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

See solution

Additional Math Textbook Solutions

Find more solutions based on key concepts
Show solutions
Find the limit: limx1(2x+4).

Calculus: An Applied Approach (MindTap Course List)

Evaluate the indefinite integral. dxax+b(a0)

Calculus: Early Transcendentals

Differentiate the function. f(t) = 2t3 3t2 4t

Single Variable Calculus: Early Transcendentals, Volume I

Identify the four steps of a hypothesis test as presented in this chapter.

Statistics for The Behavioral Sciences (MindTap Course List)

perform the indicated operations and simplify each expression. 128. (x2 4)(x2 + 4)(2x + 8) (x2 + 8x 4)(4x3)

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

Find the limit or show that it does not exist. limx3x22x+1

Single Variable Calculus: Early Transcendentals

Given: rs, rt See figure for Exercise 25. Prove: st

Elementary Geometry for College Students

For f(x) = x3 + 7x, df = _____. a) (x3 + 7x) dx b) (3x2 + 7) dx c) 3x2 + 7 d) x3 + 7x + dx

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

Evaluating Formulas In Exercises S-1 through S-24, evaluate the given function as required. Calculate P(300,0.0...

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

A tautology is a statement that is always _____.

Discrete Mathematics With Applications

45. Consider a Poisson distribution with a mean of two occurrences per time period. Write the appropriate Poiss...

Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)

How High?Linear Air Resistance Repeat Problem 36, but this time assume that air resistance is proportional to i...

A First Course in Differential Equations with Modeling Applications (MindTap Course List)