The confidence intervals discussed thus far give both a lower confidence bound and an upper confi- dence bound for the parameter being estimated. In some circumstances, an investigator will want only one of those two types of bounds. For example, a psychologist may want only an upper confidence bound for true average reaction time to a particular stimulus. Suppose you work on a large-sample n from a population with known variance o² so that the CLT can be applied. i.c. the quantity X-μ o/√√n is approximately normal. Prove (derive) that a (1-a)100% upper confidence bound for μ is of the form -∞0, X + ²a JM)

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The confidence intervals discussed thus far give both a lower confidence bound and an upper confi-
dence bound for the parameter being estimated. In some circumstances, an investigator will want
only one of those two types of bounds. For example, a psychologist may want only an upper
confidence bound for true average reaction time to a particular stimulus.
Suppose you work on a large-sample n from a population with known variance o2 so that the CLT
can be applied. i.e. the quantity
X
x-μ
o/√n
is approximately normal. Prove (derive) that a (1 - a)100% upper confidence bound for u is of the
form
(-00, X + 2a- — /m)
Transcribed Image Text:The confidence intervals discussed thus far give both a lower confidence bound and an upper confi- dence bound for the parameter being estimated. In some circumstances, an investigator will want only one of those two types of bounds. For example, a psychologist may want only an upper confidence bound for true average reaction time to a particular stimulus. Suppose you work on a large-sample n from a population with known variance o2 so that the CLT can be applied. i.e. the quantity X x-μ o/√n is approximately normal. Prove (derive) that a (1 - a)100% upper confidence bound for u is of the form (-00, X + 2a- — /m)
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