Tests of μ, Standard Deviation Estimated (4 of 4)
Next section: μ
_{1}
-μ
_{2}
, independent groups, σ estimated
Summary of Computations
Specify the null hypothesis and an alternative hypothesis.
Compute M = Σ X/N.
Compute
Compute
.
Compute
where μ is the hypothesized value of the population mean.
Compute df = N -1.
Use a
t table
to compute p from t and df.
Assumptions
Normal distribution
Scores are
independent
See also: "
Confidence interval for mean, σ estimated
"
Next section: μ
_{1}
-μ
_{2}
, independent groups, σ estimated