SOLUTION: Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to recieve a special award. What is the
Algebra.Com
Question 286233: Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to recieve a special award. What is the minimum number of words per minute a student would have to read in order to get the award?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to receive a special award. What is the minimum number of words per minute a student would have to read in order to get the award?
------------------------
Find the z-score with a right tail of 3%: invNorm(0.97) = 1.8808
------------------------
Use x = zs + u to solve for x:
-------
x = 1.8808*20 + 175
x = 212.62
Round up to 213 words per minute
================
Cheers,
Stan H.
RELATED QUESTIONS
(2)Mrs.smith reading class can read a mean of 175 words per minute with a standared... (answered by stanbon)
Hello, I have had this question a couple of times now and can't figure it out. Help... (answered by stanbon)
Ms. Swift's reading class can read an average of 170 words per minute with a standard... (answered by stanbon)
Students who have completed a speed reading course have reading speeds that are normally... (answered by ewatrrr)
The reading speed of 2nd grade students in a large city is approximately normal, with a... (answered by stanbon)
8.1 #7
The reading speed of second grade students is approximately normal, with a (answered by Boreal)
The reading speed of second grade students is approximately normal, with a mean of (answered by Fombitz)
The reading speed of second grade students in a large city is approximately... (answered by stanbon)
The reading speed of second grade students in a large city is approximately​ normal,... (answered by Boreal)