Coding and Descriptive Statistics. The Eight Queens Problem You must find a solution that places eight queens on the chessboard below so that no queen.

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Presentation transcript:

Coding and Descriptive Statistics

The Eight Queens Problem You must find a solution that places eight queens on the chessboard below so that no queen can capture any other queen. If you are a chess player, you already know that a queen can move in a straight line any number of spaces horizontally, vertically, or diagonally. Good luck.

Descriptives Correlations and Descriptives /comment *There were 7,476,814 units shipped in 1991 comprising 1703 models* -> CORRELATIONS -> /VARIABLES=nomresid firmage inddmdch inddemd znichdis zxnchdst nichesw -> znclock nclock pctahead pctbehnd aclock nichsize sqniche xnchsize nmunifch -> stblriv

Descriptives -> /PRINT=TWOTAIL SIG -> /STATISTICS DESCRIPTIVES -> /MISSING=PAIRWISE.

Descriptives Variable Cases Mean Std Dev NOMRESID FIRMAGE INDDMDCH INDDEMD ZNICHDIS ZXNCHDST

Descriptives NICHESW ZNCLOCK NCLOCK PCTAHEAD PCTBEHND ACLOCK NICHSIZE SQNICHE XNCHSIZE NMUNIFCH STBLRIV

Descriptives - - Correlation Coefficients - - NOMRESID FIRMAGE INDDMDCH INDDEMD ZNICHDIS ZXNCHDST XNCHSIZE ( 2131) ( 2132) ( 2052) ( 2132) ( 2132) ( 2132) P=.000 P=.001 P=.000 P=.000 P=.004 P=.000 NMUNIFCH ( 1598) ( 1599) ( 1599) ( 1599) ( 1599) ( 1599) P=.393 P=.479 P=.005 P=.000 P=.388 P=.213 STBLRIV ( 2131) ( 2132) ( 2052) ( 2132) ( 2132) ( 2132) P=.049 P=.000 P=.000 P=.000 P=.000 P=.000 (Coefficient / (Cases) / 2-tailed Significance) ". " is printed if a coefficient cannot be computed

ALTPROC alternate processor designation 1987 Valid Cum Value Label Value Frequency Percent Percent Percent / C

Valid Cum Value Label Value Frequency Percent Percent Percent B SX A

Descriptives A X ACS APPLE CHI GOULD LISP LSI NA PANDA PRO T V V V Z Z80A Z80B Total Valid cases 1282 Missing cases 0

Mean # of PC Models by Lifespan Number of years that a firm shipped PCs Source: IDC