. power pairedmeans, sddiff(10) altdiff(3)

Performing iteration ...

Estimated sample size for a two-sample paired-means test
Paired t test
Ho: d = d0  versus  Ha: d != d0

Study parameters:

        alpha =    0.0500
        power =    0.8000
        delta =    0.3000
           d0 =    0.0000
           da =    3.0000
         sd_d =   10.0000

Estimated sample size:

            N =        90

. 
. power oneway 2.82 3.89 3.04, varerror(.075) alpha(0.01) npergroup(4)

Estimated power for one-way ANOVA
F test for group effect
Ho: delta = 0  versus  Ha: delta != 0

Study parameters:

        alpha =    0.0100
            N =        12
  N per group =         4
        delta =    1.6847
          N_g =         3
           m1 =    2.8200
           m2 =    3.8900
           m3 =    3.0400
        Var_m =    0.2129
        Var_e =    0.0750

Estimated power:

        power =    0.9298

. 
. power twoway 0 0\ 5 5, varerror(100)

Performing iteration ...

Estimated sample size for two-way ANOVA
F test for row effect
Ho: delta = 0  versus  Ha: delta != 0

Study parameters:

        alpha =    0.0500
        power =    0.8000
        delta =    0.2500
          N_r =         2
          N_c =         2
        means =   <matrix>
        Var_r =    6.2500
        Var_e =  100.0000

Estimated sample sizes:

            N =       128
   N per cell =        32

. 
. power twoway 0 0\ 0 5, varerror(100) factor(rowcol)

Performing iteration ...

Estimated sample size for two-way ANOVA
F test for row-by-column effect
Ho: delta = 0  versus  Ha: delta != 0

Study parameters:

        alpha =    0.0500
        power =    0.8000
        delta =    0.1250
          N_r =         2
          N_c =         2
        means =   <matrix>
       Var_rc =    1.5625
        Var_e =  100.0000

Estimated sample sizes:

            N =       508
   N per cell =       127