Using a virtual fly experiment We complete the cross described in #3, and the re
ID: 317353 • Letter: U
Question
Using a virtual fly experiment We complete the cross described in #3, and the results are provided below: Are these results consistent with the expected outcomes you proposed in #3 above? Use a chi-square analysis to provide support for your answer and Clearly state the expected F2 phenotypic ratio based on question 3 above. This is your hypothesis under the current experimental design. What are the expected numbers of individuals for each of the four observed F2 phenotypes based on your hypothesis? What is your calculated chi-square test statistic? What are the degrees of freedom and the chi-square critical value for this analysis? Do you reject or fail to reject hypothesis based on this analysis?Explanation / Answer
Null Hypothesis : The observed values are not deviating form 9:3:3:1 ratio.
Categories
Wild Wild
Wild sepia
Curved Wild
Curved Sepia
Total
Observed Values
674
215
224
80
1193
Expected values
9
3
3
1
16
Exprected ratio
671.0625
223.6875
223.6875
74.5625
Deviation
2.9375
-8.6875
0.3125
5.4375
D^2
8.62890625
75.472656
0.09765625
29.56640625
D^2/E
0.012858573
0.3374022
0.000436574
0.396531852
0.747229
X^2
0.747229207
Degrees of Freedom
No of categories - 1
4-1
3
Inference: The caculated chisquare value is less than the table value i.e. 7.82 at 0.05 probablity and 3 DF. Hense Null hypothesis accepted.
The exprected individuals are
671.0625 223.6875 223.6875 74.5625
What is your calculted chisquare test statistic
0.747229207
Degrees of freedom
No of categories - 1: 4-1: 3
Categories
Wild Wild
Wild sepia
Curved Wild
Curved Sepia
Total
Observed Values
674
215
224
80
1193
Expected values
9
3
3
1
16
Exprected ratio
671.0625
223.6875
223.6875
74.5625
Deviation
2.9375
-8.6875
0.3125
5.4375
D^2
8.62890625
75.472656
0.09765625
29.56640625
D^2/E
0.012858573
0.3374022
0.000436574
0.396531852
0.747229
X^2
0.747229207
Degrees of Freedom
No of categories - 1
4-1
3
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.