Question
A random sample of 28 items is drawn from a population whose standard deviation is unknown. The sample mean isx x = 790 and the
A random sample of 28 items is drawn from a population whose standard deviation is unknown. The sample mean isx
x
= 790 and the sample standard deviation iss= 15. UseAppendix Dto find the values of Student'st.
(a)Construct an interval estimate ofwith 99% confidence.(Round your answers to 3 decimal places.)
The 99% confidence interval is from____to____
(b)Construct an interval estimate ofwith 99% confidence, assuming thats= 30.(Round your answers to 3 decimal places.)
The 99% confidence interval is from____to_____
(c)Construct an interval estimate ofwith 99% confidence, assuming thats= 60.(Round your answers to 3 decimal places.)
The 99% confidence interval is from ____to____
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Performance Analysis And Synthesis For Discrete-Time Stochastic Systems With Network-Enhanced Complexities
Authors: Derui Ding, Zidong Wang, Guoliang Wei
1st Edition
0429880022, 9780429880025
