SOLUTION: A normal distribution has a mean of 50 and a standard deviation of 4.
Determine the value below which 95 percent of the observations will occur. (Round z value to 2 decimal
Algebra.Com
Question 798212: A normal distribution has a mean of 50 and a standard deviation of 4.
Determine the value below which 95 percent of the observations will occur. (Round z value to 2 decimal places. Round your answer to 2 decimal places.)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A normal distribution has a mean of 50 and a standard deviation of 4.
Determine the value below which 95 percent of the observations will occur.
----
Find the z-value with a left-tail of 0.95.
invNorm(0.95) = 1.65
-----
To find the corresponding x-value use x = z*s+u
x = 1.65*4+50 = 56.58
===========
Cheers,
Stan H.
===========
RELATED QUESTIONS
A normal distribution has a mean of 80 and a standard deviation of 14. Determine the... (answered by stanbon)
A normal distribution has a mean of 80 and a standard deviation of 14. Determine the... (answered by stanbon)
Assume that a normal distribution of data has a mean of 24 and a standard deviation of 4. (answered by Boreal)
In 3-4, for a normal standard distribution, determine what percent of the data values are (answered by Boreal)
A normal distribution has a mean of 80 and a standard deviation of 14.
Determine the (answered by stanbon)
A normal distribution has a standard deviation equal to 10. What is the mean of this... (answered by Theo)
a set of data has a normal distribution with a mean of 5.1 and a standard deviation of... (answered by Fombitz)
a set of data has a normal distribution with a mean of 5.1 and a standard deviation of... (answered by Fombitz)
a set of data has a normal distribution with a mean of 5.1 and a standard deviation of... (answered by edjones)