A random sample of nn measurements was selected from a population with standard deviation σ=10.4 and unknown mean μ. Calculate a 90 % confidence interval for μ for each of the following situations:

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A random sample of nn measurements was selected from a population with standard deviation σ=10.4 and unknown mean μ. Calculate a 90 % confidence interval for μ for each of the following situations:

(a) n=70, x¯¯¯=94.6
 ≤μ≤

(b) n=85, x¯¯¯=94.6
 ≤μ≤

(c) n=105, x¯¯¯=94.6
 ≤μ≤ 

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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,