chapter 1

CHAPTER 14Section 14.11.a. We reject H o if the calculated2α, k−12χ value is greater than or equal to the tabled value of2χ from Table A.7. Since 12.25 ≥ χ 9. 488 , we would reject H o .. 05,4=2b. Since 8.54 is not 11. 344≥ χ , we would fail to reject H o .. 01,3=2c. Since 4.36 is not 4. 605≥ χ , we would fail to reject H o .. 10,2=2d. Since 10.20 is not 15. 085≥ χ , we would fail to reject H o .. 01,5=2.a. In the d.f. = 2 row of Table A.7, our22χ value of 7.5 falls between. 025,2= 7. 378χ and2χ 9.210 , so the p-value is between .01 and .025, or .01 < p-value < .025.. 01,2=b. With d.f. = 6, our22χ value of 13.00 falls between. 05,6= 12. 5922χ 14.440 , so .025 < p-value < .05.. 025,6=c. With d.f. = 9, ourχ and22χ value of 18.00 falls between. 05,9= 16. 9192χ 19.022 , so .025 < p-value < .05.. 025,9=χ andd. With k = 5, d.f. = k – 1 = 4, and ourp-value < .005.22χ value of 21.3 exceeds χ. 005,4= 14. 860, so thee. The d.f. = k – 1 = 4 – 1 = 3; 2 2χ = 5. 0 is less than 6. 251χ , so p-value > .10.. 10,3=439