I need help -statistics question due

timer Asked: May 1st, 2016

Question description

I cannot figure this out:

How well materials conduct heat matters when designing houses, for example. Conductivity is measured in terms of watts of heat power transmitted per square meter of surface per degree Celsius of temperature difference on the two sides of the material. In these units, glass has conductivity about 1. The National Institute of Standards and Technology provides exact data on properties of materials. Here are 11 measurements of the heat conductivity of a particular type of glass:


The mean (±0.001) and the standard deviation (±0.0001) of the SRS are: 

The critical value (±0.001) from the distribution for 99 % confidence interval is: 

The 99 % confidence interval (±0.001) for the mean conductivity is 
from _________ to________________

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