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## Week 1 Participation Post 4 (variant)

by: smartwriter Notetaker

15

0

0

# Week 1 Participation Post 4 (variant)

Marketplace > Week 1 Participation Post 4 variant
smartwriter Notetaker
CSU - Dominguez hills
GPA 3.0

No professor available

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Week 1 Participation Post 4 (variant)
COURSE
PROF.
No professor available
TYPE
Study Guide
PAGES
0
WORDS
KARMA
50 ?

## Popular in Department

This 0 page Study Guide was uploaded by smartwriter Notetaker on Sunday November 15, 2015. The Study Guide belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 15 views.

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Date Created: 11/15/15
You have an excellent understanding of the null and alternate hypothesis Why are con dence intervals important How would you go about constructing a con dence interval for a one sample test Confidence intervals are important for several reasons First of all a confidence interval is a range measure of what the true population mean can fall into at a certain level of confidence or sureness A 95 confidence interval would tell us that we can say that we are 95 confident the true population mean is in the given range of values known as the lower and upper limits of the interval The confidence interval can have a confidence level of whatever you wish but the usual values are 90 95 and 99 To calculate the confidence interval for a z test you would use the standard deviation zconf level2 mean and sample size which all comes together with the formula meanzconf level2standard deviationsquare root of n meanzconf level2standard deviationsquare root of n The same can be calculated for a 1 sample t test The only difference is that except for using zconf level2 we use tconf level2 with whatever degrees of freedom nl

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