# Biostats

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Biostats
What statistical methods a researcher can use to determine if weights of the children in pounds are normally distributed or not?

Biostats
If the average (xbar) on an assignment in a class was 82% with a standard deviation (s) of 4.8, what is the z-score for someone scoring 75% (round to the one hundredths place or two decimal places)?

Biostats
What statistical method(s) a researcher can use to determine if the mean body mass index of the population is the same for three groups of subjects (group i=diet restriction; group 2=exercise; group 3=none).

BioStats
An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at r = 0.35. The study involves n=125 participants and the mean (std dev) age is 44.3 (10.0) years with an age range of 35 to 55 years, and ...

Biostats
I am having problems in this course with following the professor. Can anyone help me with this problem Thanks need to calculate 99% CI for true mean with the following data: n=100, mean is 126 with sample variance of 402. I have to know the answer, theorems and interpret tne ...

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