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- @CHA PROG=AM1408B.CHA
- @LAB:SCREEN18
- .SCR 0
- .SNA(*(.INF 39)0*)
- .COL 7,0
- .LOC 2,46(*18*)
- .COL 0,3
- .LOC 5,11(* Summary *)
- .PAU(**)#4
- .COL 12,0
- .LOC 7,15(*NULL HYPOTHESIS:*)
- .PAU(**)#4
- .COL 10,0
- .LOC 7,34(*the categories are independent*)
- .PAU(**)#4
- .LOC 9,15(*Find the probability for each row and for each column.*)
- .PAU(**)#4
- .LOC 11,15(*Calculate from them the expected frequency for each cell.*)
- .PAU(**)#4
- .LOC 13,15(*Combine cells where necessary.*)
- .PAU(**)#4
- .LOC 15,15(*Calculate the O - E and hence find X²*)
- .PAU(**)#4
- .LOC 17,15(*Calculate the degrees of freedom using (r - 1)(c - 1)*)
- .PAU(**)#4
- .LOC 19,15(*Enter the X² table at the appropriate row and level.*)
- .PAU(**)#4
- .LOC 21,15(*If X² ≥ table value then reject the Null Hypothesis.*)
- .PAU(**)#4
- .COL 0,3
- .LOC 24,64(*SPACE >>*)
- .PAU(**)
- @LAB:SCREEN19
- .SCR 2
- .SNA(*(.INF 39)2*)
- .LOC 2,46(*19*)
- .LOC 5,11(*Another example:*)
- .PAU(**)#4
- .LOC 7,15(*1000 pupils were given a series of tests at two levels*)
- .LOC 9,15(*of difficulty. Establish whether the Tests and the Levels*)
- .LOC 11,15(*are statistically independent at the 5 % level.*)
- .LOC 13,25(*Test A Test B Test C Totals*)
- .LOC 15,15(*Level 1*)
- .LOC 17,15(*Level 2*)
- .LOC 19,15(*Totals*)
- .DRA (*C1BM180,96M180,152BM252,96M252,152BM324,96M324,152BM396,96M396,152BM112,108M458,108BM112,140M458,140*)
- .LOC 15,26(*250*)
- .LOC 15,35(*200*)
- .LOC 15,44(*150*)
- .LOC 15,54(*600*)
- .LOC 17,26(*150*)
- .LOC 17,35(*100*)
- .LOC 17,44(*150*)
- .LOC 17,54(*400*)
- .LOC 19,26(*400*)
- .LOC 19,35(*300*)
- .LOC 19,44(*300*)
- .LOC 19,53(*1000*)
- .LOC 21,15(*Null Hypothesis: the Tests and Levels are independent*)
- .SPE PLAY (*AM140816.SPE*) WAIT
- .PAU(**)#4
- .USE PROG=PAUSE.USE
- .WIP (4,2)-(23,79) #17
- .LOC 2,46(*19a*)
- .PAU(**)#2
- .LOC 6,15(*Calculate the expected frequencies:*)
- .DRA (*C1BM81,65M543,65*)
- .DRA (*C1BM81,168M543,168*)
- .DRA (*C1BM152,56M152,168*)
- .DRA (*C1BM240,56M240,168*)
- .LOC 8,13(*Test*)
- .LOC 8,23(*Level*)
- .LOC 8,41(*Expected frequency*)
- .LOC 10,14(*A*)
- .PAU(**)#2
- .LOC 10,25(*1*)
- .PAU(**)#2
- .LOC 10,55(*= 240*)
- .PUT 328,70 PART=20
- .PAU(**)#2
- .LOC 12,14(*B*)
- .PAU(**)#2
- .LOC 12,25(*1*)
- .PAU(**)#2
- .LOC 12,55(*= 180*)
- .PUT 328,86 PART=21
- .PAU(**)#2
- .LOC 14,14(*C*)
- .PAU(**)#2
- .LOC 14,25(*1*)
- .PAU(**)#2
- .LOC 14,55(*= 180*)
- .PUT 328,102 PART=21
- .PAU(**)#2
- .LOC 16,14(*A*)
- .PAU(**)#2
- .LOC 16,25(*2*)
- .PAU(**)#2
- .LOC 16,55(*= 160*)
- .PUT 328,118 PART=22
- .PAU(**)#2
- .LOC 18,14(*B*)
- .PAU(**)#2
- .LOC 18,25(*2*)
- .PAU(**)#2
- .LOC 18,55(*= 120*)
- .PUT 328,134 PART=23
- .PAU(**)#2
- .LOC 20,14(*C*)
- .PAU(**)#2
- .LOC 20,25(*2*)
- .PAU(**)#2
- .LOC 20,55(*= 120*)
- .PUT 328,150 PART=23
- .PAU(**)#4
- .USE PROG=PAUSE.USE
- .WIP (4,2)-(23,79)
- .DRA (*C1BM171,65M543,65*)
- .DRA (*C1BM171,56M171,128*)
- .DRA (*C1BM217,65M217,128*)
- .DRA (*C1BM263,56M263,128*)
- .DRA (*C1BM309,65M309,128*)
- .DRA (*C1BM355,56M355,128*)
- .DRA (*C1BM401,65M401,128*)
- .DRA (*C1BM447,56M447,128*)
- .DRA (*C1BM493,65M493,128*)
- .DRA (*C1BM173,56M173,128*)
- .DRA (*C1BM265,56M265,128*)
- .DRA (*C1BM357,56M357,128*)
- .DRA (*C1BM449,56M449,128*)
- .DRA (*C1BM81,83M543,83*)
- .DRA (*C1BM81,116M543,116*)
- .LOC 8,25(*Test A*)
- .PAU(**)#2
- .LOC 10,25(*O*)
- .PAU(**)#2
- .LOC 12,12(*Level 1*)
- .LOC 12,24(*250*)
- .PAU(**)#2
- .LOC 14,12(*Level 2*)
- .LOC 14,24(*150*)
- .PAU(**)#2
- .LOC 16,12(*Totals*)
- .LOC 16,24(*400*)
- .PAU(**)#2
- .LOC 10,30(*E*)
- .PAU(**)#2
- .LOC 12,29(*240*)
- .PAU(**)#2
- .LOC 14,29(*160*)
- .PAU(**)#2
- .LOC 16,29(*400*)
- .PAU(**)#2
- .LOC 8,37(*Test B*)
- .PAU(**)#2
- .LOC 10,37(*O*)
- .PAU(**)#2
- .LOC 12,36(*200*)
- .PAU(**)#2
- .LOC 14,36(*100*)
- .PAU(**)#2
- .LOC 16,36(*300*)
- .PAU(**)#2
- .LOC 10,42(*E*)
- .PAU(**)#2
- .LOC 12,41(*180*)
- .PAU(**)#2
- .LOC 14,41(*120*)
- .PAU(**)#2
- .LOC 16,41(*300*)
- .PAU(**)#2
- .LOC 8,48(*Test C*)
- .PAU(**)#2
- .LOC 10,48(*O*)
- .PAU(**)#2
- .LOC 12,47(*150*)
- .PAU(**)#2
- .LOC 14,47(*150*)
- .PAU(**)#2
- .LOC 16,47(*300*)
- .PAU(**)#2
- .LOC 10,53(*E*)
- .PAU(**)#2
- .LOC 12,52(*180*)
- .PAU(**)#2
- .LOC 14,52(*120*)
- .PAU(**)#2
- .LOC 16,52(*300*)
- .PAU(**)#2
- .LOC 8,60(*Totals*)
- .PAU(**)#2
- .LOC 10,60(*O*)
- .PAU(**)#2
- .LOC 12,59(*600*)
- .PAU(**)#2
- .LOC 14,59(*400*)
- .PAU(**)#2
- .LOC 16,58(*1000*)
- .PAU(**)#2
- .LOC 10,65(*E*)
- .PAU(**)#2
- .LOC 12,64(*600*)
- .PAU(**)#2
- .LOC 14,64(*400*)
- .PAU(**)#2
- .LOC 16,64(*1000*)
- .PAU(**)#2
- .PAU(**)#4
- .USE PROG=PAUSE.USE
- .LOC 18,11(*Calculate*)
- .PUT 168,133 PART=6
- .LOC 18,27(*= 19.10*)
- .PAU(**)#4
- .USE PROG=PAUSE.USE
- .WIP (4,2)-(23,79) #4
- .LOC 2,46(*19b*)
- .PAU(**)#2
- .LOC 16,11(*There are 2 rows and 3 columns giving*)
- .PUT 392,119 PART=7
- .LOC 16,53(*= 1 x 2 = 2*)
- .PAU(**)#4
- .LOC 18,11(*Enter the*)
- .PUT 168,133 PART=6
- .LOC 18,25(*table with*)
- .PUT 288,135 PART=7
- .LOC 18,39(*= 2 and level 5 %*)
- .PAU(**)#4
- .LOC 18,60(*» 5.99*)
- .PAU(**)#4
- .LOC 20,11(*19.10 ≥ 5.99 so we reject the Null Hypothesis.*)
- .PAU(**)#4
- .LOC 22,11(*Conclusion: the Tests and the Levels are not independent*)
- .DRA (*C1BM81,177M543,177*)
- .PUT 500,187 PART=2 PSET
- @SIN(*"C"=L:SCREEN20,"R"=L:-SCREEN19,"c"=L:SCREEN20,"r"=L:-SCREEN19*)
- @LAB:SCREEN20
- .COL 0,0
- .SCR 1
- .SNA(*(.INF 39)1*)
- .COL 8
- .PAL 1
- .LOC 2,23(*20*)
- .LOC 7,5(*At this point in the full version*)
- .LOC 9,9(*of the program the user is*)
- .LOC 11,5(*requested to complete a worksheet*)
- .LOC 13,6(*for this section, entering the*)
- .LOC 15,7(*results via the keyboard onto*)
- .LOC 17,9(*the computer for checking.*)
- .PAU(**)#4
- .LOC 20,6(*Type C <enter> to continue.*)
- .SET #10(*SCREEN21*)
- .USE PROG=PRESSC.USE
- @LAB:SCREEN21
- .COL 0,0
- .SCR 1
- .SNA(*(.INF 39)1*)
- .COL 8
- .PAL 1
- .LOC 2,23(*21*)
- .LOC 6,4(*However, in this demonstration the*)
- .LOC 8,7(*results checking facility is*)
- .LOC 10,4(*unavailable, so you will continue to*)
- .LOC 12,6(*the next phase of the tutorial.*)
- .PAU(**)#4
- .LOC 18,6(*Type C <enter> to continue.*)
- .SET #10(*SCREEN22Z*)
- .USE PROG=PRESSC.USE
- @LAB:SCREEN22Z
- .WIP (20,2)-(23,39)
- .PAU(**) #4
- .COL 1,
- .LOC 14,8(*Do you wish to:*)
- .COL 2,
- .LOC 16,4(*(C) continue to the next Part*)
- .LOC 18,4(*(R) return to the Contents page*)
- .COL 1,
- .LOC 20,8(*Please type C or R >*)
- .COL 3,
- @SIN (*"C"=C:AM1408C.CHA,"c"=C:AM1408C.CHA,"R"=L:BACKB,"r"=L:BACKB*)
- @LAB:BACKB
- @GOB:SCREEN09 PROG=AM1408
-
-