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Biostatistics

07/07/20

an urn contains 8 orange balls and 7 green balls. If 7 balls at random are chosen what is probability that he will select 3 orange balls and 4 green

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Biostatistics

06/26/20

experiments under natural conditions- randomisation, experimetal units (N)

Hello,I have question regarding to a research paper. In this reseach paper they test whether the probiotic supplementation to the diet affects the growth performance and immune responses of... more

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Biostatistics Epidemiology

05/22/20

Can two students be tutored at one time?

Donna seems like a fantastic choice! Does she have this capability?

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Biostatistics Math Calculus Precalculus

05/07/20

What is the percentage of people taking the test score between 370 and 592?

The mean is 592, the standard deviation is 111, it uses the 68–95–99.7 rule

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Biostatistics Math Statistics College Algebra

04/12/20

P1. The heights of adult men in the United States are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches.

P1. The heights of adult men in the United States are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches. a. Actor Michael B. Jordan is 6’0” (72”)... more

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Biostatistics Biology Anatomy Physiology

04/04/20

Microbiology Epidemiology

Microbiology Epidemiology Microbiology Epidemiology Microbiology Epidemiology Microbiology Epidemiology

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Biostatistics

03/24/20

Biosatistics probability problem

Nine percent of the population has blood type B. If we choose 18 people at random, what is the probability that three will have blood type B?

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Biostatistics Statistics

03/03/20

Uniformly Minimum-Variance Unbiased Estimator

1. Let X1, . . . , Xn ∼ iid Gamma(α, θ) with α known. (a) Find the uniformly minimum-variance unbiased estimator (UMVUE) for θ. (b) Determine if the UMVUE is efficient. (c) Determine if the UMVUE... more

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Biostatistics

02/24/20

Normal Distribution

the common fruit fly drosophila melanogaster Is the most studied organism in genetic research because it is so small easy to grow and reproduce is rapidly the length of the thorax with the wings... more

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Biostatistics Biology Biochemistry Microbiology

01/18/20

Can someone help me please?

Question: Use a suitable diagram and explain the role of glutamate and AMPA/NMDA receptor interaction in the promotion of pyramidal cell excitability, accompanied by spine formation, in the... more

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Biostatistics Statistics

01/08/20

I have a z values statistics question.

A population is normally distributed with µ=36 and δ=10 What is the probability of randomly selecting a value that is greater than 45?I get 18,41%, but on my lecture slides the answer is : Area... more

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Biostatistics Statistics

11/09/19

p values differing amongst two groups in comparison

this is a board exam practice question, so I apologize in advance for leaving out all the details. I don't even know if this is a legitimate study.this was a study based on serum glucose levels... more

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Biostatistics

11/04/19

Normal distribution and Probability

Say we have GRE scores are normally distributed with mean 500 and standard deviation 100. Find the probability that a randomly selected GRE score is greater than 620. We want to know what’s the... more

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Biostatistics

10/31/19

From this study, what is the value of the point estimate for the mean core body temperature in adults?

A total of 130 adults were recruited to determine the normal core body temperature range of healthy adults in the U.S. The study reported the 95% CI for the mean core body temperature in adults to... more

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Biostatistics

09/17/19

Statistics Problem about probability

We have an urn with 1 red ball and 9 yellow balls. We will sample 3 balls form the urn with replacement. What is the probability that we will obtain at least one yellow ball?

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Biostatistics Statistics

07/20/19

How to analyze changes over time statistically

I have narcotic prescription rates for each states for the last 10 years. I want to assess changes over time, but am unsure how to approach the data. I want to know what the general trend is, then... more

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