* Problem 1.  Employee training.

DATA LIST FREE / program score.
BEGIN DATA.
1   9
1  12
1  14
1  11
1  13
2  10
2   6
2   9
2   9
2  10
3  12
3  14
3  11
3  13
3  11
4   9
4   8
4  11
4   7
4   8
END DATA.
ONEWAY
  score BY program
  /STATISTICS DESCRIPTIVES
  /MISSING ANALYSIS .


* Problem 3.  Housing Prices.

DATA LIST FREE / plevel price.
BEGIN DATA.
1  120
1   68
1   40
1   95
1   83
2   61
2   59
2  110
2   75
2   80
3   40
3   55
3   73
3   45
3   64
END DATA.
ONEWAY
  price BY plevel
  /STATISTICS DESCRIPTIVES
  /MISSING ANALYSIS .

* F test versus T-test comparison.

DATA LIST FREE / program score.
BEGIN DATA.
1   9
1  12
1  14
1  11
1  13
2  10
2   6
2   9
2   9
2  10
3  12
3  14
3  11
3  13
3  11
4   9
4   8
4  11
4   7
4   8
END DATA.
RECODE PROGRAM (1, 3 = 1) (2, 4 = 2).
ONEWAY
  score BY program
  /STATISTICS DESCRIPTIVES
  /MISSING ANALYSIS .
T-TEST / GROUPS PROGRAM (1, 2) / VARIABLES SCORE.

* Posthoc comparisons.

DATA LIST FREE / program score.
BEGIN DATA.
1   9
1  12
1  14
1  11
1  13
2  10
2   6
2   9
2   9
2  10
3  12
3  14
3  11
3  13
3  11
4   9
4   8
4  11
4   7
4   8
END DATA.
ONEWAY
  score BY program
  /STATISTICS DESCRIPTIVES
  /MISSING ANALYSIS
  /POSTHOC =  LSD BONFERRONI SIDAK SCHEFFE ALPHA(.05).