Exam (elaborations)
Chi Square Bio340 ASU Exam Questions and Complete Solutions Graded A+
- Course
- Institution
Chi Square Bio340 ASU Exam Questions and Complete Solutions Graded A+
[Show more]
Content preview
Chi Square Bio340ASU Exam
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
,Null hypothesis: H0 - Correct Ans: • there is no association between two phenomena
• there is no effect by a drug on a disease
• there is no linkage between two genes
• there is no evolution occurring in the gene pool
Alternative hypothesis: H1 - Correct Ans: An alternative hypothesis (H1) is the rival to the
null and defines the rejection region
• One-tailed: the region of rejection is in one tail of
the sample
• Our company's new drug works better than the
competitor's
• Two-tailed: the region of reject is in both tails of
the sample
• Our company's new drug works differently than
the competitor's
If we can reject the null hypothesis, we say
there is evidence for the alternative hypothesis
Histogram of results - Correct Ans: With a significance level of
0.05, you have a 5%
chance of rejecting the null
hypothesis, even if it is
true. 5% of your
experiments will give you
data that are significantly
different, just by chanc
Dihybrid test cross
, What is our null hypothesis H0 for genotype ratios?
GgWw x ggww - Correct Ans: phenotype Genotype Probability
Dominant for both traits Gg Ww
Dominant for the first and
recessive for the second Gg ww
Recessive for the first and
dominant for the second gg Ww
Recessive for both gg ww
GgWw Ggww gg Ww gg ww
Observed 5 45 45 5
Obs. Ratio 1 9 9 1
Expected 25 25 25 25
Exp. Ratio 1 1 1 1
How are we going to test the null hypothesis
with four categories? - Correct Ans: Pearson's chi-squared test (test
statistic)
Pearson's chi-squared test (test
statistic) - Correct Ans: Pearson's X2 allows you to summarize your
observed data into a single value
• Pearson's X2 statistic allows us to summarize how
well our observed offspring numbers fit the
expected numbers
• Important: the sum uses counts not ratios
AND takes over all offspring types
chi-squared test (test
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller YourExamplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now