Determine the z-score value in each of the following scenarios: a. What z-score value separates the...
Determine the z-score value in each of the following scenarios:
a. What z-score value separates the top 8% of a normal distribution from the bottom 92%?
Using standard normal table, a) P(Z < z) = 0.92 To see the probability 0.92 in the standard normal table the corresponding z value is 1.405 . P(Z < 1.405) = 0.92 z - score = 1.405 b) P(Z < z) = 0.28
Please can you show me how to get the exact calculations for get the z score of 1.405
Homework Answers
Solution:
a) P(Z < z) = 0.92
Answer: To get the exact z-score as 1.405 for the probability 0.92, we need to use the technology like excel.
The formula in excel is:
b) P(Z < z) = 0.28
Answer: The excel formula is:
Add Answer to:
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Please explain in steps, Thank
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Please explain in steps, Thank
You!!
7. What z-score value separates the highest 10% of the scores in a normal distribution from the lowest 90%? 8. Scores on the SAT form a normal distribution with a mean of μ-550 with σ 100. If the state college only accepts students who score in the top 65% on the SAT, what is the minimum score needed to be accepted? What does that z-score become if they change their criteria so that only...
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calculated z-score. A z-score converts a non-standard normal
distribution into a standard normal distribution; a standard normal
distribution has a mean of zero and standard deviation of
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