A random sample of size n = 18 is obtained from a normally distributed population with a population mean of u = 100 and a variance of = 40. What is the probability that the sample variance is greater than 85? Click here to view a table of upper critical values for the chi-square distribution. The probability is - X Upper critical values for the chi-square distribution. PROBABILITY OF EXCEEDING THE CRITICAL VALUE greater than 0. 10. 0.10 0.05 0.025 0.01 0.001 less than 0.001. 2.70 3.841 5.024 6.635 10.828 4.605 5.991 7.378 9.210 13.816 between 0.025 and 0.05. 6.251 7.815 9.348 11.345 16.266 7.779 9.488 11.143 13.277 18.467 JanAWN between 0.001 and 0.01. 9.236 11.070 12.833 15.086 20.515 10.645 12.592 14.449 16.812 22.458 between 0.01 and 0.025. 7 12.017 14.067 16.013 18.475 24.322 13.362 15.507 17.535 20.090 26.125 between 0.05 and 0.10. 14.684 16.919 19.023 21.666 27.877 10 15.987 18.307 20.483 23.209 29.588 11 17.275 19.675 21.920 24.725 31.264 12 18.549 21.026 23.337 26.217 32.910 13 19.812 22.362 24.736 27.688 34.528 14 21.064 23.685 26.119 29.141 36.123 15 22.307 24.996 27.488 30.578 37.697 16 23.542 26.296 28.845 32.000 39.252 17 24.769 27.587 30.191 33.409 10.790 18 25.989 28.869 31.526 34.805 42.312 19 27.204 30.144 32.852 36.191 43.820 20 28.412 31.410 34.170 37.566 45.315 29.615 32.671 35.479 38.932 46.797 30.813 33.924 36.781 40.289 18.268 32.007 35.172 38.076 41.638 19.728 33.196 36.415 39.364 42.980 51.179 34.382 37.652 40.646 14.314 52.620 35.563 38.885 41.923 45.642 54.052 27 36.741 40.113 43.195 46.963 55.476 28 37.916 41.337 44.461 48.278 56.892 39.087 42.557 45.722 19.588 58.301 30 40.256 43.773 46.979 50.892 59.703 40 51.805 55.758 59.342 63.691 73.402 50 63.167 67.505 71.420 76.154 86.661 Print Done