The following values summarize the results from an independentmeasures study comparing two treatment conditions.
a. Use an independentmeasures t test with
b. Use an ANOVA with
a.
Given info:
From a study of independent measures for comparing two treatments,
Treatment 1  Treatment 2 












Calculation:
The null and alternative hypotheses:
Null hypothesis:
Alternate hypothesis:
Degrees of freedom:
It is known that for k number of treatments the degrees of freedom is,
Thus,
Critical value:
From tdistribution table, with
Pooled variance:
The pooled variance is
Thus,
Estimated standard error:
The estimated standard error is
b.
To check:
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