Statistical Significance. In an experiment testing a method of gender selection intended to increase the likelihood that a baby is a girl, 1000 couples give birth to 501 girls and 499 boys. An analyst argues that this fails to provide evidence that the method has any effect, because the probability of getting these results by chance is 0.487, or almost 50%.
In: Statistics and Probability
(i) Why do we see an interference pattern in the double slit experiment of electrons (even when they are sent one by one)?
(ii) Interpret the fine structure constant in terms of properties of electrons in the Hydrogen atom. Explain further why relativistic corrections to the Hydrogen atom are proportional to the fine-structure constant.
In: Physics
write the complete mechanism for the preparation of banana oil
why do you use sulfuric acid in the reaction
explain why we used simple distillation in order to isolate our product. Describe what is actually happening in the process.
Calculate and discuss your % yield...
explain why reflux is neccesary in this experiment..
In: Chemistry
Which of the following are true for probability? CHECK ALL THAT APPLY!
| a) |
If P(A)=0 for an event A, that means A cannot happen. |
|
| b) |
The total probability of all possible outcomes of an experiment adds up to 1. |
|
| c) |
P(A|B) = P(A) means that these two events are independent. |
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| d) |
The probability is a value between -1 and 1. |
In: Statistics and Probability
I am interested in antibiotic resistance. How might I identify all genes that contribute to resistance to a given antibiotic in a particular isolate of bacteria all at once, using an approach that involves illumina sequencing? (note – this is not simply by genome sequence analysis – it’ll take a more complex experiment coupled to sequencing).
In: Biology
Design an experiment that uses a Winogradsky Column to study microbes. (State the specific type of microbe or property of the microbe you want to study and how you would alter what was done in the column you observed to design your Winogradsky Column.) Please don't copy-paste somebody's answer. Thank you.
In: Biology
You decide to use RT-PCR to confirm your predictions about the exon organization of the 2 mRNAs in tissue such as heart and epidermis. Describe in general the experiment you would do, specifying where your PCR primers would be designed to bind. What results would you expect. Please be specific
In: Biology
The lac operon is regulated via positive and negative
regulation. Explain how each
mechanism works on this operon, and under which circumstances will
the operon be
turned on. Include the definition of an operon
2. What are the advantages to a microbe of having inducible
enzymes? What is the
function of toluene in the experiment where you induced enzyme
function?
In: Biology
Create an experiment which would use a Chi-Squared for Goodness
of Fit test in order to examine a topic of either race or gender in
society.
What is your independent variable?
please help me with this assignment, but only if you're willing to do it and not copy and paste someone else's work. thank you in advance.
In: Statistics and Probability
Question 3: A freshman class consists of 6 students, 3 of which are girls. The class needs to select a committee of 2 to represent them in the student senate.
(1) Write the sample space of this experiment.
(2) Calculate the probability of a committee of two boys. (3)
Calculate the probability of one boy and one girl.
In: Math