12. If µ = 40, o = 4, what is the raw score which corresponds to z= -2.00?а. 32b. 44с. 36d. 3413. What is the probability that a z-score will have a value above 1? P(z> 1)a. 0.3413b. 0.1587c. 0.8413d. 0.477214. What is the probability that a z-score will have a value below 2? P(z< 2)a. 0.0345b. 0.5146c. 0.9772

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Answered: 12. If µ = 40, o = 4, what is the raw…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The distribution of life spans is approximately normal and u=40, how large a sample is required in order that the probability of committing a type II error be 0.1 when the true mean is 35.9 months? Assume that o = 5.8 months.
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The length of eels (in cm) in a river may be assumed to be normally distributed with a mean of µ = 42 and a standard deviation of o = 6. An angler catches an eel from a river. Let: X = the length (in cm) of an eel a) If the normal length of eels is between 30 cm and 45 cm, what percentage of eels fall within this normal range? Round your answer to 2 decimal places. b) What is the probability that an eel is at least 51 cmin length? Round your answer to 4 decimal places. c) The middle 50% of the lengths (in cm) of the eels are between and Round your answers to 2 decimal places d) Due to the symmetry of the normal distribution we know that DIV 20 - DIV -
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