Find the test statistic and critical value(s). Also, use Table A-4 to find limits containing the P-value, then determine whether there is sufficient evidence to support the given alternative hypothesis.

H₁: ? > 3.5 minutes, ? = 0.01, n = 15, s = 4.5 minutes.

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TABLE A-4 Chi-Square (x²) Distribution Degrees of Freedom 1 2 SAWN 3 4 5 67899 10 11 12 13 14 15 LADDA NN 7 40 50 70 80 100 0.995 0.010 0.072 0.207 0.412 0.99 0.001 0.020 0.051 0.115 0.216 0.297 0.484 0.554 0.831 0.676 0.872 0.989 1.239 1.344 1.646 1.735 2.088 2.156 2.558 2.603 3.053 3.074 3.571 3.565 4.107 4.075 4.660 4.601 5.229 0.975 5.142 5.812 5.697 6.408 6.265 7.015 6.844 7.633 7.434 8.260 8.034 8.897 8.643 9.542 9.260 10.196 9.886 10.856 10.520 11.524 1.237 1.690 2.180 2.700 3.247 5.629 6.262 Area to the Right of the Critical Value 10.283 10.982 11.689 0.95 12.401 13.120 0.004 0.016 0.103 0.211 0.352 0.711 1.145 1.635 2.167 2.733 3.325 3.940 3.816 4.575 5.578 4.404 5.226 6.304 5.009 5.892 7.042 6.571 7.261 6.908 7.564 8.231 8.907 10.117 9.591 10.851 7.962 8.672 9.390 0.90 11.591 12.338 2.706 4.605 0.584 6.251 1.064 7.779 1.610 9.236 0.10 2.204 10.645 2.833 12.017 3.490 13.362 4.168 14.684 4.865 15.987 17.275 18.549 19.812 7.790 21.064 8.547 22.307 9.312 23.542 10.085 24.769 10.865 25.989 11.651 27.204 12.443 28.412 13.240 29.615 14.042 30.813 14.848 32.007 33.196 34.382 13.091 13.848 15.659 14.611 16.473 11.160 12.198 15.379 17.292 35.563 18.114 36.741 13.844 11.808 12.879 14.573 16.151 12.461 13.565 15.308 13.121 14.257 16.047 17.708 19.768 39.087 13.787 14.954 16.791 18.493 20.599 40.256 16.928 18.939 37.916 0.05 3.841 5.991 7.815 9.488 11.071 12.592 14.067 15.507 16.919 18.307 26.296 27.587 28.869 30.144 31.410 32.671 33.924 0.025 5.024 7.378 9.348 19.675 21.026 22.362 24.736 38.885 40.113 11.143 12.833 41.337 42.557 43.773 23.685 26.119 24.996 27.488 17.535 19.023 20.483 14.449 16.812 16.013 18.475 20.090 21.666 23.209 0.01 6.635 9.210 11.345 13.277 15.086 35.172 36.415 37.652 40.646 21.920 24.725 26.757 23.337 26.217 28.299 27.688 29.819 31.319 32.801 29.141 30.578 28.845 32.000 30.191 33.409 31.526 34.805 32.852 36.191 34.170 37.566 35.479 36.781 38.076 41.638 39.364 42.980 44.314 38.932 40.289 41.923 45.642 43.194 46.963 44.461 48.278 45.722 49.588 46.979 50.892 0.005 59.342 63.691 55.758 67.505 71.420 76.154 79.082 83.298 88.379 20.707 22.164 24.433 26.509 29.051 51.805 27.991 29.707 32.357 34.764 37.689 63.167 35.534 37.485 40.482 43.188 46.459 74.397 43.275 45.442 48.758 51.739 55.329 85.527 51.172 53.540 57.153 60.391 64.278 96.578 59.196 61.754 65.647 69.126 73.291 107.565 90.531 95.023 100.425 101.879 106.629 112.329 118.136 124.116 113.145 67.328 70.065 74.222 77.929 82.358 118.498 124.342 129.561 135.807 7.879 10.597 12.838 14.860 16.750 18.548 20.278 21.955 23.589 25.188 34.267 35.718 37.156 38.582 39.997 41.401 42.796 44.181 45.559 46.928 48.290 49.645 50.993 52.336 53.672 66.766 79.490 91.952 104.215 116.321 128.299 140.169