xyWeBWorK : M1231-01-ExIl pandora . Yahoo Search MATH 1 X cure https://webworkda

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xyWeBWorK : M1231-01-ExIl pandora . Yahoo Search MATH 1 X cure https://webworkdaytoriedu/ etwork2/M1231-01-FA17/Chapter 6/8/?effectr User:rtyde3&userstyde3;&key;=Pwj86la ork MAA MATHEMATICAL ASSOCIATION OF AMERICA webwork /m1231-01-1a17 chapter 6/8 Chapter 6: Problem 8 Previous Problem Problem List Next Problem (1 point) Find the z-score from a standard normal distribution that satisfies each of the following statements (a) The point z with 2.81 percent of the observations talling below t Z | 9975 (b) The closest point z with 18.41 percent of the observations falling above it Note: You can earn partial credit on this probiem Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 0% You have unlimited attempts remaining 6 PART I...ppt pe here to search

Explanation / Answer

Solution:

P(Z<z) = 0.0281

1 - P(Z<z) = 1 - 0.0281

P(Z<-z) = 0.9719

from table 0.9719 = P(Z<1.91)

z = -1.91

____________________________________

P(Z > z) = 0.1841

1 - P(Z>z) = 1 - 0.1841

P(Z < z) = 0.8159

from table 0.8159 = P(Z< 0.8998)

z = 0.8998 or

z = 0.89

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