Answered: If the Z-score of a certain number is…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Similar questions

With a mean of 110 and standard dev. of 15, find the 3 unique deviations to the left and right of the mean.
For a sample with a mean if M=63, a score of X=54 corresponds to Z= -0.75. what is the sample standard deviation?
3
The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days and a standard deviation of 13 days.In what range would you expect to find the middle 50% of most pregnancies? Between and.
the golf scores for a school team were normally with a mean of 68 and a standard deviation of 3. Use the Z-table to find the value of k so that 40% of the score are greater than k
A sample of n=11 scores has a mean of M=9. If one new person with a score of X=4 is added to the sample, what will be the value of the new mean?
Using z scores, a population with u = 37 and o = 6 is standardized so that the new mean is u = 55 and o = 2. After the standardization, one individual has a score of X = 55. What was this individual’s score in the original distribution?
A sample of n = 15 scores has a mean of M = 6. One person with a score of X = 22 is added to the sample. What is the value for the new sample mean?
The average score of the students of a certain class in a 100-item quiz is 83 with a standard deviation of 2.5. What is the coefficient of variation?
The ages of students in a certain high school had mean 16.5 and standard deviation 1.2. A student whose age is 18 is selected, the z-score of the age 18 is equal to Select one: а. 1.25 O b. -1.5 C. 1.5 d. -1.25
Find the z-score when x is 5, mean equals 7, and standard deviation 3.
If a sample has a mean of 48 and a standard deviation of 3.2, what is the value in the set that corresponds to a z-score of -1.6?

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If the Z-score of a certain number is -0.440, with a mean of 80.2 and standard deviation of 11.811, what is the number а. 75 b. 80 c.65 d.78