I am unable to figure out how to find E2 in this equation as no standard deviation or standard error is given. It tells me that the correct answer is 0.03, but I fail to understand how they got to that answer Find the sample size needed to estimate the percentage of residents of one region of a country whoare left-handed. Use a margin of error of three percentage points, and use a confidence level of95%. Complete parts (a) through (c) below.normal distribution. While either a table of cumulative areas of the standard normal distribution ortechnology could be used to find z,/2, for the purposes of this solution technology will be used.Use technology to find the critical value separating an area of 0.025 in the right tail of the standardnormal distribution.Za/2 == 1.96(Round to two decimal places as needed.)Recall that E is the desired margin of error in the formula given below for the sample size nrequired to obtain a confidence interval for the population proportion p.[Zu12]°0.25E?n =What value should be substituted for E in the formula?0.03(Tunan integer or a dëcimal. Do not round.)You answered: 0.10nd 0.03 for E and evaluate to find the sample size needed to estimate

Here E denotes the margin error Margin error is the value which tells number of percentage points…

Answered: I am unable to figure out how to find…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

I am unable to figure out how to find E²in this equation as no standard deviation or standard error is given. It tells me that the correct answer is 0.03, but I fail to understand how they got to that answer

Find the sample size needed to estimate the percentage of residents of one region of a country who
are left-handed. Use a margin of error of three percentage points, and use a confidence level of
95%. Complete parts (a) through (c) below.
normal distribution. While either a table of cumulative areas of the standard normal distribution or
technology could be used to find z,/2, for the purposes of this solution technology will be used.
Use technology to find the critical value separating an area of 0.025 in the right tail of the standard
normal distribution.
Za/2 =
= 1.96
(Round to two decimal places as needed.)
Recall that E is the desired margin of error in the formula given below for the sample size n
required to obtain a confidence interval for the population proportion p.
[Zu12]°0.25
E?
n =
What value should be substituted for E in the formula?
0.03
(Tun
an integer or a dëcimal. Do not round.)
You answered: 0.10
nd 0.03 for E and evaluate to find the sample size needed to estimate

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Equality of Variances$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc