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Problem Set IV
Essay specific features
Written by:
Gabriel C
Date added:
September 8, 2013
Level:
University
Grade:
A
No of pages / words:
3 / 799
Was viewed:
9294 times
Rating of current essay:
Essay content:
What is the value of the population mean? What is the best estimate of this value?
The value of the population mean is unknown. However, we have the sample mean to guesstimate it at about 60 pounds.
B. Explain why we need to use the t distribution. What assumption do you need to make?
Given that the standard deviation of the population is unknown, we need to use the t distribution...
displayed 300 characters
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Explain why we need to use the t distribution. What assumption do you need to make?
Given that the standard deviation of the population is unknown, we need to use the t distribution. We need to assume that the population follows normal distribution.
C. For a 90 percent confidence interval, what is the value of t?
For a 90 percent confidence interval, the value of t is 2...
displayed 300 characters
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