How many observations collected to have half width, Mechanical Engineering

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How many observations collected to have half width

Suppose we take 25 i.i.d observations from normal distribution with population standard deviation known to be 30. Further suppose that the sample mean turns out to be 278.

a. what is a 95% CI for population mean?

b. Given the same population standard deviation, how many observations need to be collected to have a halfwidth of 95% CI less than 10?

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Mechanical Engineering: How many observations collected to have half width

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Mechanical Engineering: How many observations collected to have half width

Reference No:- TGS0748053

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Recent Questions Asked Mechanical Engineering

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Request for Solution File

Ask an Expert for Answer!!

Mechanical Engineering: How many observations collected to have half width

Reference No:- TGS0748053

Recent Questions Asked Mechanical Engineering

Q : How many si atoms-o atoms present per millimeter of length

Q : Find the acceleration of the car

Q : Studying for a vocabulary test

Q : Predict sales at a computer store

Q : How many observations collected to have half width

Q : What is the frequency of the lowest note

Q : Find amount of heat transfer between water and air in room

Q : What is the value of the electric force between the plates

Q : What is the orbital period of the faster planet

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