A light bulb manufacture guarantees that that the mean life of a certain type of light bulb is at least 750 hours. A random sample of 36 light bulbs has a mean life of 745 hours with a standard deviation of 60 hours. Do you have enough evidence to reject the manufacturer's claim? Use a = 0.02

A light bulb manufacture guarantees that that the mean life of a certain type of light bulb is at least 750 hours. A random sample of 36 light bulbs has a mean life of 745 hours with a standard deviation of 60 hours. Do you have enough evidence to reject the manufacturer's claim? Use a = 0.02

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

Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus.

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.

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1 n
Type of test
Ha
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Ho
A light bulb manufacture guarantees that that the mean life of a certain type of light bulb is at least
3 alpha
4 alpha/2
750 hours. A random sample of 36 light bulbs has a mean life of 745 hours with a standard deviation
of 60 hours. Do you have enough evidence to reject the manufacturer's claim? Use a = 0.02
5 Ho
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Test statistic
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9 o or s
critical value (s)
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p-value
12 o/sqrt(n)
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decision
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conclusion

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