Question

Value: 2 For many students, calculating the chi square value is the most challenging part of conducting a chi square test so it is important to practice. Consider the following information An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? ## or ####, depending on what you think the answer is. b. What is the calculated chi-square value? For at your answer with 1 s nificant di it e # Sure, you can to guess it 10 im utwork t out you know how to do this for the test. The chi-squared equation won't be provided on the test, so make sure you put it on the permitted 3x5" note card. yo make sure c. What is the critical chi-square value from the table provided in the book at the P-0.05 level of significance? Enter the number exactly as shown in this table. d. Would you "reject" or "fail to reject" the null hypothesis in favor of the alternative hypothesis? Just enter the phrase as shown above, but without the quotation marks. Check Answer

Answer 1

all round dwart-wwrinkled T R F2 phenotypic eat,D = 9 : 3 : 3 :

Tal Tall- wrinkled dwart- dwarf- 0Yound voundwrinkled 0 obsevved510 495 490 505 expected u2-5 375 375 125 2000 x㈤ | 2000 x(зд.) (o-e)-615 1 S 120 380 -| 336.2 | 38-4 35.2 55.2 2- 334 2 +38.4+35.2 +1155.2 ラ1565