SOLUTION: a 95% confidence interval for the mean of a population is given as (3.0, 5.0). If a sample size of 100 was used to obtain this interval what was the standard deviation used in the

Question 422763: a 95% confidence interval for the mean of a population is given as (3.0, 5.0). If a sample size of 100 was used to obtain this interval what was the standard deviation used in the calculation?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a 95% confidence interval for the mean of a population is given as (3.0, 5.0). If a sample size of 100 was used to obtain this interval what was the standard deviation used in the calculation?
-----------------
2*ME = 5-3 = 2
ME = 1
---------------
So zs/sqrt(n) = 1
1.96s/sqrt(100) = 0.196s = 1
s = 5.1020
==================
Cheers,
Stan H.
RELATED QUESTIONS
a 95% confidence interval for a population mean was reported to be 152 to 160. if... (answered by flame8855)

using a 95% confidence interval, estimate the population mean given that the sample mean... (answered by Boreal)

A group of students from a college are expressing some concern with the amount of coffee... (answered by Boreal)

a. A random sample of 25 was drawn from a normal distribution... (answered by stanbon)

Section 6.1: Confidence Intervals for the Mean (Large Samples) 1. Find the critical... (answered by stanbon)

Given a normally distributed population, find a 95% confidence interval for the... (answered by Fombitz)

Determine the necessary sample size for a confidence interval around a sample mean: Set... (answered by Boreal)

When σ = 10, what sample size is needed to specify a 95% confidence interval of �3... (answered by ewatrrr,stanbon)

I'm needing some help with these last problems on this chapter. Thanks. 1.) Assume... (answered by stanbon)