Assignment Three – T-tests Assignment Three

T-tests

Discuss what t-tests are. Explain the difference between one and
two-tailed t-tests. Explain the usefulness of your t-test findings
for statistical analysis. Download Applied Statistics from the link below as a reference.

Chose a data set and perform a t-test analysis on the data set.

Present the statistical analysis and include anything else you want from the data analysis output.

References

Phil Crewson, Applied Statistics, a Desktop Statistics Reference

Normal Distribution –

Hypothesis Tests – t-Tests

Difference between means and two sample t-test –

Difference between paired means – t-test –

T Distribution Calculator –

The Completed Assignment Could Be Like This.

I. Discussion about t-tests

a. What are t-test used for?

b. Why t-test are inferential not descriptive statistics?

c. What is the difference between the various types of t-tests?

II. Statistical analysis

a. identify a data set

Figure One

data in statistics program

Data looks like this in the statistics program.

b. complete statistical procedure on the data

c. report the output from the statistical program

Figure Two

t-test output

two sample difference of the mean t-test

Figure Three

more t-test output

paired sample t-test

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Statistics Question

Assignment Three – T-tests Assignment Three

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