+
Confidence Interval for the mean - s.d of population known or large sample size

Confidence Interval for the mean - s.d of population known or large sample size

Rating:
Rating
(0)
Author: Bob Kibler
Description:

At the end of this lesson, you will be able to;

  • develop a confidence interval for the mean of the population
  • interpret the meaning of the confidence interval
  • determine the size of a sample needed to find an estimate with a given interval
(more)
See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

221 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

Confidence Interval for the mean with the s.d. known or a large sample size

Notes

Full Screen

Do I get it?

Do I get it? - Answers

1.  58.1 space m g

2.   z subscript alpha over 2 end subscript equals 1.96

 

3.  1.96 open parentheses fraction numerator 4.2 over denominator square root of 50 end fraction close parentheses equals space 1.16

4.    58.1 space plus-or-minus 1.16 space space
left parenthesis 56.94 space m g space minus space 59.26 space m g right parenthesis