190 Answered Questions for the topic biostatistics
Human population genetics question
4) (10 pts). Consider a population that is made up of all AA individuals. If all of our Hardy Weinberg assumptions hold, except for one-way mutation, in which A mutates to a at a rate of 0.0005, a)...
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College Human population genetics problem (biology)
Consider a population with a frequency of the M allele of p = 0.3 and the frequency of the N allele of q = 0.7. Ten parents are randomly selected to produce the next generation of 10 offspring. a)...
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10/16/24
Question from my human pop genetics class
I apologize that this is a long one but I'm fearing I've done all of this wrong. I'm especially confused with graphing all of this for part C.(25 pts) Some people do not recognize the bitter taste...
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Biostatistics Statistics
04/09/24
*URGENT* Unsure of which statistical test to use
I am assessing the effect of premature birth on cognitive development. I conducted a survey with quantitative answers on a scale (e.g., how easy to you find mathematics? Very hard, moderately hard,...
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02/24/24
I need urgent help with figuring out some statistical test for my biology experiment!
So I tested the inhibitory effect of 2 essential oils on bacteria at 5 different concentrations increasing by 20% beginning with 10% and ending at 90%. Thus, the first independent variable is the...
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02/22/24
How to do a two-way ANOVA, followed by Tukey's HSD test for a biology experiment?
So I'm trying to see the effect of 2 different types of essential oils (rosemary and ginger) on E. coli. What I did was that I increased the concentrations of the oils and I used the disk diffusion...
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02/21/24
i'm stuck trying to figure out how to do the statistical test for my biology experiment
So I'm trying to see the effect of 2 different types of essential oils (rosemary and ginger) on e.coli. What I did was that I increased the concentrations of the oils and I used the disk diffusion...
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02/18/24
i'm doing a study as a high schooler trying to see the effect of 2 different types of essential oils on e.coli. i'm kind of stuck not knowing which statistical tests are most appropriate.
What I did was that I increased the concentrations of the oils from 10% to 20%, 30%, 40%, and 50%. I used the disk diffusion tests and measured the inhibition zones formed. I also had a positive...
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02/03/24
How do I know what statistical test to do, t-test (1-tailed or 2-tailed?) or ANOVA (which one?)
I did an experiment and had one independent variable and 2 dependent variables. Basically I tested diff. concentrations of an inhibitor on an enzyme and determined the enzyme's activity by...
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Biostatistics
01/04/24
What is the best way to compare data from two counties?
I would like to compare the percent of population below the poverty line for three counties for funding. Would I take the average, use the median or how?
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Biostatistics
09/30/23
statistics and probabilities
Use your calculator to find the statistics listed below that describe the sample data set of LDL-C (mg/dL) values: [ 51, 94, 120, 62, 114, 75, 56, 105, 98, 83, 75 ] a. Mean b. Median c. Mode d....
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Biostatistics Biology
09/10/23
A weight loss center provided a loss for 72% of its participants.
A weight loss center provided a loss for 72% of its participants. The center's leader decides to test a new weight loss strategy to see if it's better and receives a P-value of 0.23, based on the...
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Biostatistics Biology
09/10/23
Finding p-value
A newspaper is conducting a statewide survey concerning the race for governor. The newspaper will take a simple random sample of n registered voters and determine X = the number of voters that will...
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Biostatistics
06/25/23
Bio Statistics question
Suppose that the blood cholesterol levels of all men aged 20 to 34 years follows the Normal distribution with mean 𝜇=188 milligrams per deciliter (mg/dl) and standard deviation 𝜎=41 mg/dl.(a)...
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Collisions in Real Life
Please help me answer the following question, please provide steps, and work. Question: In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When...
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04/01/23
Photosynthesis: Photosystem ll
What is the general question that you want to ask about Photosystem II that will be experimental for a lab? What specific, testable hypothesis can you generate from that? The hypothesis must be...
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Biostatistics
03/14/23
The middle 50 percent of the wires of Company A tested between (_______) and (upper) limits. Record ONLY the lower limit as a whole number.
The following statistics represent samples of copper wire submitted by two companies for tensile strength testing (psi).Statistic Company...
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Biostatistics
03/08/23
The effect of deviding a variable into different sized groups in logistic regression
My dependent is highly skewed to the left with range of 0-162 (a score of a questionnaire). I'm including it into a logistic regression model with 2 other cofactors. The total N is around 500. I...
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Biostatistics Statistics
02/25/23
What is the 90% C.I.
You intend to estimate a population mean � with the following sample.
50.5
60.3
58.8
62
67.4
64.7
69.2
52.6
You believe the population is normally distributed. Find the 90% confidence interval....
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Biostatistics Statistics
02/20/23
a particular fruit...
A particular fruit's weights are normally distributed, with a mean of 425 grams and a standard deviation of 6 grams.If you pick 10 fruit at random, what is the probability that their mean weight...
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Biostatistics Statistics
02/20/23
A particular fruit's weights are normally distributed...
A particular fruit's weights are normally distributed, with a mean of 224 grams and a standard deviation of 16 grams. If you pick 11 fruit at random, what is the probability that their mean weight...
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Biostatistics Statistics
12/17/22
When taking a certain drug 8.5% experience nausea as a side effect.
A scientist took a random sample of 1102 individuals who were taking the drug and recorded the sample proportion who experienced nausea as a side effect, ˆp. Assume the sampling distribution...
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Biostatistics Statistics
12/17/22
A population of values has a normal distribution with μ = 135.4 and σ = 80.7. You intend to draw a random sample of size n = 12 .
-Find the probability that a single randomly selected value is less than 207.6. P(X < 207.6) =-Find the probability that a sample of size n=12n=12 is randomly selected with a mean less than...
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Biostatistics
12/08/22
1. Which of the following is an appropriate confidence interval to indicate significance for a risk difference of -2.4? 2. A. -2.5 to 0.67 B. 2.4 to 3.6 C. -2.5 to -1.4 D. -2.5 to 1.9
Which of the following is an appropriate confidence interval to indicate significance for a risk difference of -2.4?
A.
-2.5 to 0.67
B.
2.4 to 3.6
C.
-2.5 to -1.4
D.
-2.5 to 1.9
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12/07/22
STATISTICS CHAPTER 8
According to a study conducted,the proportion of americans who were afraid to fly in 2012 was 0.10. A random sample of 150 americans resulted in 13 indicating that they were afraid. Explain why...
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