Wires manufactured for use in a computer system are specified to have resistances between .12 and .14 ohms. The actual measured resistances of the wires produced by company A have an unknown distribution with mean .13 ohm and standard deviation .05 ohm. a) Find a probability if randomly selected a resistance has at least 0.13 ohm, if possible. b) If 40 resistances are randomly selected find the probability that their average measurement value is between 0.12 to 0.14 ohm, if possible.

Wires manufactured for use in a computer system are specified to have resistances between .12 and .14 ohms. The actual measured resistances of the wires produced by company A have an unknown distribution with mean .13 ohm and standard deviation .05 ohm. a) Find a probability if randomly selected a resistance has at least 0.13 ohm, if possible. b) If 40 resistances are randomly selected find the probability that their average measurement value is between 0.12 to 0.14 ohm, if possible.

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Wires manufactured for use in a computer system are specified to have resistances between
.12 and .14 ohms. The actual measured resistances of the wires produced by company A have
an unknown distribution with mean .13 ohm and standard deviation .05 ohm.
a) Find a probability if randomly selected a resistance has at least 0.13 ohm, if possible.
b) If 40 resistances are randomly selected find the probability that their average measurement
value is between 0.12 to 0.14 ohm, if possible.
5. Based on the study at Indiana University, it is known that 11 % of population have green eyes.
If you randomly choose 560 people,
a) Check the conditions or requirements to use Normal Distribution.
b) Compute probability that greater than 70 people have green eyes.

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