For question one (1) use the following data. Show Computations X1 2553622465 X2

Question

For question one (1) use the following data. Show Computations X1 2553622465 X2 7688567996 Evaluate the test scores in X2 and Xi for differences. Treat the scores as same subject test (TI and T2) scores and as test scores coming from two different samples of subjects (Gl & G2). Dependent t Independentt Do You accept or reject the Null Hypothesis? What can you conclude about your decision 2. Evaluate the following data for differences and explain which data set is different than which of the others x 10 8 10 974898 3 Y 4365 4 264 5 43258 Z 59 5 8847 86 7695 ANOVA or F Post Hoc

Explanation / Answer

Using MINITAB

1    Choose Stat > ANOVA > One-Way (Unstacked).

2    In Responses (in separate columns), enter the columns containing the separate response variables.

3    If you like, use any dialog box options, then click OK.

MTB > AOVOneway 'X'-'Z'.

One-way ANOVA: X, Y, Z

Source DF      SS     MS     F      P
Factor   2   69.51 34.75 9.98 0.000
Error   34 118.38   3.48
Total   36 187.89

S = 1.866   R-Sq = 36.99%   R-Sq(adj) = 33.29%

                         Individual 95% CIs For Mean Based on
                         Pooled StDev
Level   N   Mean StDev --------+---------+---------+---------+-
X      10 7.600 2.366                       (-------*-------)
Y      14 4.357 1.646 (------*------)
Z      13 6.692 1.653                  (------*------)
                         --------+---------+---------+---------+-
                               4.5       6.0       7.5       9.0

Pooled StDev = 1.866

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