Question

A research study examined the blood vitamin D levels of the entire US population of landscape gardeners. The population average level of vitamin D in US landscapers was found to be 42.93 ng/mL with a standard deviation of 4.251 ng/mL. Assuming the true distribution of blood vitamin D levels follows a Gaussian distribution, if you randomly select a landscaper in the US, what is the probability that his/her vitamin D level will be between 32.13 and 43.89 ng/mL?

Answer #1

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 41.37 ng/mL
with a standard deviation of 4.43 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a Gaussian
distribution, if you randomly select a landscaper in the US, what
is the likelihood that his/her vitamin D level will be 31.47 ng/mL
or more? Answer:

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 40.42 ng/mL
with a standard deviation of 5.446 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a Gaussian
distribution, if you randomly select a landscaper in the US, what
is the likelihood that his/her vitamin D level will be between
49.82 and 58.82 ng/mL?

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 49.23 ng/mL
with a standard deviation of 5.534 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a gaussian
distribution, if you randomly select a landscaper in the US, what
is the probability that his/her vitamin D level will be 62.39 ng/mL
or less?

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 47.84 ng/mL
with a standard deviation of 4.465 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a normal
distribution, if you randomly select a landscaper in the US, what
is the likelihood that his/her vitamin D level will be 50.08 ng/mL
or more?

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 41.73 ng/mL
with a standard deviation of 5.334 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a normal
distribution, if you randomly select a landscaper in the US, what
is the probability that his/her vitamin D level will be 34.93 ng/mL
or more?

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 554 ng/mL with
a standard deviation of 4.191 ng/mL. Assuming the true distribution
of blood vitamin D levels follows a normal distribution, if you
randomly select a landscaper in the US, what is the probability
that his/her vitamin D level will be 59.88 ng/mL or more?
9% of mosquitos...

A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 46.64 ng/mL
with a standard deviation of 5.294 ng/mL. Assuming the true
distribution of blood vitamin D levels follows a Gaussian
distribution, what is the upper value of the region for which
approximately 99.9% of the data are located within the
distribution? Recall the 68-95-99.9% observation discussed in the...

PLEASE DO NOT ROUND YOUR ANSWER. THANKS
A research study examined the blood vitamin D levels of the
entire US population of landscape gardeners. The population average
level of vitamin D in US landscapers was found to be 554 ng/mL with
a standard deviation of 4.191 ng/mL. Assuming the true distribution
of blood vitamin D levels follows a normal distribution, if you
randomly select a landscaper in the US, what is the probability
that his/her vitamin D level will be...

Recall in our discussion of the normal distribution the research
study that examined the blood vitamin D levels of the entire US
population of landscape gardeners. The intent of this large-scale
and comprehensive study was to characterize fully this population
of landscapers as normally distributed with a corresponding
population mean and standard deviation, which were determined from
the data collection of the entire population.
Suppose you are now in a different reality in which this study
never took place though...

Recall in our discussion of the normal distribution the research
study that examined the blood vitamin D levels of the entire US
population of landscape gardeners. The intent of this large-scale
and comprehensive study was to characterize fully this population
of landscapers as normally distributed with a corresponding
population mean and standard deviation, which were determined from
the data collection of the entire population.
Suppose you are now in a different reality in which this study
never took place though...

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