Question

A corn genetics lab.

i got total chi-square of 14.34. And the number of degrees of freedom of 1.

How can I find the probability of a Match base on the table? please explain.

Degree of Freedom 0.99 0.000 0.020 0.115 0.297 0.554 0.872 1.239 1.647 2.088 2.558 3.053 3.571 4.107 4.660 5.229 5.812 6.408 7.015 7.633 8.260 9.542 10.856 12.198 13.565 14.953 22.164 Probability of Exceeding the Critical Value 0.95 0.90 0.75 0.50 0.25 0 .10 0.0040.016 0.1020.455 1.32 2.71 0.103 0.211 0.575 1.386 2.77 4.61 0.352 0.584 1.212 2.366 4.11 6.25 0.711 1.064 1.923 3.357 5.39 7.78 1.145 1.610 2.675 4.351 6.63 9.24 1.635 2.204 3.455 5.348 7.84 10.64 2.167 2.833 4.255 6.346 9.04 12.02 2.733 3.490 5.071 7.344 10.22 13.36 3.325 4.168 5.899 8.343 11.39 14.68 3.940 4.865 6.737 9.342 12.55 15.99 4.575 5.578 7.584 10.341 13.70 17.28 5.226 6.304 8.438 11.340 14.85 18.55 5.892 7.042 9.299 12.340 15.98 19.81 6.571 7.790 10.165 13.339 17.12 21.06 7.261 8.547 11.037 14.339 18.25 7.962 9.312 11.912 15.338 19.37 23.54 8.672 10.085 12.792 16.338 20.49 24.77 9.390 10.865 13.675 17.338 21.60 25.99 10.117 11.651 14.562 18.338 22.72 27.20 10.851 12.443 15.452 19.337 28.41 12.338 14.041 17.240 21.337 30.81 13.848 15.659 19.037 23.337 33.20 15.379 17.292 20.843 25.336 30.43 35.56 16.928 18.939 22.657 27.336 32.62 37.92 18.493 20.599 24.478 29.336 34.80 40.26 26.509 29.051 33.660 39.335 45.62 51.80 0.05 3.84 5.99 7.81 9.49 11.07 12.59 14.07 15.51 16.92 18.31 19.68 21.03 22.36 23.68 25.00 26.30 27.59 28.87 30.14 31.41 33.92 36.42 38.89 41.34 43.77 55.76 0.01 6.63 9.21 11.34 13.28 15.09 16.81 18.48 20.09 21.67 23.21 24.72 26.22 27.69 29.14 30.58 32.00 33.41 34.80 36.19 37.57 40.29 42.98 45.64 48.28 50.89 63.69

Answer 1

Answer

According to the given question-

The degree of freedom with their chi square critical value are given in the table.

Here the probability is given from 0.99 which indicated the 99 % similarity. The probability is calculated from 0.99 to 0.0005 i.e. upto 0.005%

For one degree of freedom the valve of your chi square are 14.34 which is greater than the probability value of 0.0005 which is 12.12

i.e.the your calculated values of chi sq0uare is > probability of 0.0005 which is 12.12. because 14.34> 12.12, so your value are not in the range so you have to reject the hypothesis for this critical value.

For example you have your critical value is 3.4 for one degree of freedom so you have to look between the probability valve which comes in this range and you can observe that the valve of 3.4 is comes between the probability of 0.10 and 0.05 and by interpolation you can get the correct value of probability.

Here you have provided incomplete table and the valve of probability are from 0.99 to 0.01 but the probability are calculated from 0.99 to 0.0005 for every degree of freedom. So plz get the complete cri square value table from where you can easily get your result.