Microsoft Office Tutorials and References

In Depth Information

Chapter 4

One-Group t-Test for the Mean

In this chapter, you will learn how to use one of the most popular and most helpful

statistical tests in science research: the one-group t-test for the mean.

The formula for the one-group t-test is as follows:

X

m

s
X

t

¼

where

(4.1)

s

s

e

:
¼

S
X
¼

p

n

(4.2)

:

)

from it, and then divide the answer by the standard error of the mean (s.e.). The

standard error of the mean equals the standard deviation divided by the square root

of n (the sample size). If you want to learn more about this test, see Zikmund and

Babin (2010).

Let’s discuss the 7 STEPS of hypothesis testing using the one-group t-test so that

you can understand how this test is used.

This formula asks you to take the mean (
X
) and subtract the population mean (

m

4.1 The 7 STEPS for Hypothesis-testing Using

the One-group t-test

Objective
: To learn the 7 steps of hypothesis-testing using

the one-group t-test

Before you can try out your Excel skills on the one-group t-test, you need to

learn the basic steps of hypothesis-testing for this statistical test. There are 7 steps in

this process:

T.J. Quirk et al.,
Excel 2007 for Biological and Life Sciences Statistics
,

DOI 10.1007/978-1-4614-6003-9_4,
#
Springer Science+Business Media New York 2013

63

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