"AST1CAL3 EQUATION VARIABLE","12-07-1993","14:00:03"
"N=N+1 äX=äX+X äXùX=äXùX+X^2 äXùY=äXùY+X*Y äY=äY+Y äYùY=äYùY+Y^2 SLOPE=(N*äXùY-äX*äY)/(N*äXùX-äX^2) INTERCPT=(äY-SLOPE*äX)/N R[COR_CO]=(N*äXùY-äX*äY)/SQR((N*äXùX-äX^2)*(N*äYùY-äY^2))"
"LINEAR REGRESSION, SLOPE, INTERCEPT, CORRELATION COEFFICIENT.  Linear regression, or first-order polynomial regression, is a least-squares     process which generates the best estimate of the line:                                               Y = SLOPE * X + INTERCPT                                   for a given number of (X,Y) data pairs.  The correlation coefficient R is a     statistical estimate of how well the line respresents the data. A 'perfect' fit has R = ñ1.   The steps used to enter the data and calculate these  values are:               1) Type ? then (end esc) 0 (enter)      to set everything to 0.0.               2) Type M then x-value (ctrl enter) (enter) y-value (enter)                     3) Type M and enter the next value and so on...                   Note: N is the number of (X,Y) data pairs and (ctrl enter) is used the enter thex-value without performing any calculations.                                                                                   (c) Copyright PCSCC, Inc., 1993  *** Answer(s) to problem ***                                                    The values of the variables at entry are set to the final values after the 5    data points are entered. The SLOPE is 0.04678 and INTERCPT is 0.2854.  The      correlation coeff. R of 0.9809 suggests that the thickness of the gold is well- correlated to the depostion time.                Type any key to exit.                         ||Calculate the slope, intercept and correlation coefficient for a gold deposition process for which the time (min) vs. thickness (mm) data are: (1, .3351), (2, .3837), (3, .4244), (4, .4493) and (5, .5362).                       Type comma key to see answer.  Type (F2) to return to application file."
11
5,0,""
15,0,""
55,0,""
6.8539,0,""
2.1287,0,""
.92901399,0,""
4.678000000000002D-02,0,""
.2853999999999999,0,""
.9809639151588159,0,""
5,0,""
.5362,0,""
1
0
0