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Exercises
Testing Hypotheses
Test of Significance involving the Sample Average
Uppertailed
t
test
Twotailed
t
test
The
t
test is not universally appropriate
Generalizing Tests of Significance
Examples
Type I and Type II Errors
Using the TI83
Calculating a ttest for
Calculating a ttest for
Calculating a Paired ttest for
Calculating a ztest for
p
Calculating a ztest for
p
_{1}

p
_{2}
Using Excel
Comparing two means (independent samples)
Comparing two means (paired samples)
Exercises
20030908