189 Answered Questions for the topic biostatistics

Biostatistics Statistics

02/06/22

In a random sample of 530 judges, it was found that 287 were introverts.
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a random sample of 530 judges, it was found that 287 were... more
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Biostatistics Science Biology Chemistry

12/27/21

What is the difference between imitation and emulation ?
What is the difference between imitation and emulation ?
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Biostatistics Math Biology Statistics

12/15/21

Population Dynamics

 In a survey of northern mountain ash seedlings in northern Ontario, researchers randomly placed eight 1.0 m by 2.0 m quadrats in a field that measured 100 m by 150 m. Estimate the population... more
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Biostatistics Biology Statistics Genetics

11/25/21

Find the probability if a couple to have 3 children that will be unaffected by Tay-Sachs disease
what is the probability that if the couple has three children, none of them will be affected by the syndrome. refer to the attached picture and show solution.is it 107/144? can you verify my... more
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Biostatistics Math Statistics Mathematics

11/06/21

Binomial Distribution
The distribution of weights for the population of females in the United States is approximately normal with mean µ = 135.4 pounds and standard deviation σ = 21.3 pounds.  What is the probability... more
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Biostatistics Math Biology Statistics

10/31/21

Statistics Probability Question
Let Y be a random variable that represents the number of infants in a group of 4,000 who die from asthma in a year. In the United States, the probability that a child dies from an acute asthma... more
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Biostatistics Math Biology Statistics

10/30/21

Probability Question

 Consider a group of nine individuals selected from the AARP (American Association of Retired People) of 50-year-olds and above in the United States. The number of persons in this sample who suffer... more
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Biostatistics Math Biology Statistics

10/28/21

Probability Question
I want to check my work for this question, my answer is 0.131 but I think I might have calculated this wrong.Question: The US preterm birth rates have declined between 2006 and 2008. In 2008, the... more
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Biostatistics Statistics Spss

10/21/21

maximum liklihood

I am analyzing a sample of 59 subjects using linear mixed effect model. Would using a maximum likelihood is appropriate here or should I use the restricted maximum likelihood and why?
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Biostatistics Statistics

10/21/21

non normal distribution for a linear mixed effect model analysis

I checked my outcome variable for normal distribution using Kolmogrov-Smirnov and Shapiro-Wilk tests and it was not normally distributed. and tried to do the log transformation and still turned out... more
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Biostatistics Math Science Biology

09/03/21

Incidence Rate Question
What is the cumulative incidence and incidence rate of cancer in decimal form?Participant A: • Age: 7• Outcome: CancerParticipant B• Age: 2• Outcome: No CancerParticipant C• Age: 2• Outcome:... more
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Biostatistics Normal Distribution

08/30/21

A normal distribution with mean 37.6 cc per minute and variance 4.6 cc per minute. Find the probabilities (a) at least 44.5 cc.
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Biostatistics Science Biology Statistics

07/21/21

What statistical test can I use?

I want to measure the increase of Fetal haemoglobin in patients in a few case studies before and after they use a specific drug. I am taking data from 5 studies, what test can I use and how can I... more
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Biostatistics

06/17/21

What is the standard deviation of the new data shifted by 5 mmHg?
1.     Suppose you measure the blood pressure of 100 hypertensive males and find that they have a mean systolic blood pressure of 133 mm Hg with a variance of 16 mm Hg. You later discover... more
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Biostatistics Algebra 2 Statistics

06/16/21

Design of experiment to test customer perception.
A pet supply company is trying to determine whether kittens could be subtly tinted to improve their customer satisfaction. That is, if the kittens were dyed very slightly bluish, or reddish, would... more
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Biostatistics

05/25/21

Interpreting the results of statistical data
A sample of 100 new born babies showed 15% underweight. Write the 95% confidence interval for the population proportion π. Interpret your result.
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Biostatistics Science Statistics Anatomy

05/24/21

Anatomy and Physiology

Approximately how many MORE high volume cholecystectomy surgeries were performed in 2007 than 1998?
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Biostatistics Science Statistics Anatomy

05/24/21

Anatomy and physiology

What country spends the most on research and development for GERD? Aka gastroesophageal reflux disease
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Biostatistics Science Statistics Anatomy

05/24/21

Anatomy and Physiology

Approximately, how many more IBS surgeries were performed in 2007 than 2001?
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Biostatistics Science Statistics Anatomy

05/24/21

Anatomy and Physiology

What age group of women is most at risk for peptic ulcers?
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Biostatistics Science Statistics Anatomy

05/24/21

Anatomy and physiology

In 2006, what region in the U.S had the highest incidence rate of colorectal cancer? Why do you think this was?
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Biostatistics Math Science Biology

05/24/21

Using EcoRI, which cuts at 5' GAATTC 3', indicate how many strands would be produced?
5’ A G A A T T C G C T T A A G T C G A C G T A A G C C G G A A T T C C A T T C G A A T T A G 3’ 3’ T C T T A A G C G A A T T C A G C T G C A T T C G G C C T T A A G G T A A G C T T A A T C 5’ Using... more
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Biostatistics

05/19/21

Which sampling distribution is most appropriate for estimating a mean when the standard error of the mean is NOT known
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Biostatistics Statistics

05/14/21

Statistical Inference

In statistical inference, which of the following is NOT considered a random variable?I. 𝑥̅1-𝑥̅2II. μ1–μ2III. 𝑥IV. 𝑥̅V. 𝜇a. II, IIIb. I, II, V c. II, Vd. I, IV, V
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Biostatistics Science Biology Chemistry

05/04/21

So no one has helped me with my chemistry homework at all and I really need it so please someone respond and help me as soon as possible

1.) 3 Cu + 8HNO3 g 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of NO can be made when 58 moles of HNO3 are consumed? 2.) 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation... more
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