Solution:
X | XBAR | X-XBAR | (X-XBAR)^2 |
0.548 | 0.58975 | -0.04175 | 0.001743 |
0.551 | 0.58975 | -0.03875 | 0.001502 |
0.563 | 0.58975 | -0.02675 | 0.000716 |
0.551 | 0.58975 | -0.03875 | 0.001502 |
0.66 | 0.58975 | 0.07025 | 0.004935 |
0.661 | 0.58975 | 0.07125 | 0.005077 |
0.56 | 0.58975 | -0.02975 | 0.000885 |
0.593 | 0.58975 | 0.00325 | 1.06E-05 |
0.675 | 0.58975 | 0.08525 | 0.007268 |
0.549 | 0.58975 | -0.04075 | 0.001661 |
0.534 | 0.58975 | -0.05575 | 0.003108 |
0.593 | 0.58975 | 0.00325 | 1.06E-05 |
0.543 | 0.58975 | -0.04675 | 0.002186 |
0.619 | 0.58975 | 0.02925 | 0.000856 |
0.669 | 0.58975 | 0.07925 | 0.006281 |
0.674 | 0.58975 | 0.08425 | 0.007098 |
0.644 | 0.58975 | 0.05425 | 0.002943 |
0.533 | 0.58975 | -0.05675 | 0.003221 |
0.549 | 0.58975 | -0.04075 | 0.001661 |
0.526 | 0.58975 | -0.06375 | 0.004064 |
TOTAL | 0.056724 |
sample standard devaition,s=
s=sqrt(0.056724/20-1)
=sqrt(0.002985)
=0.0546
ANSWER:
sample standard deviation,s=0.0546
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