1) z = (mean-u)/(sd/sqrt(n)) = (1038-1000)/(400/sqrt(100)) = 0.95 type II error = P(z $1000 critical value, z(a) z(0.05) 1.645 test statistic, z = (mean-u)/(sd/sqrt(n)) = (1050-1000)/(200/sqrt(26)) 1.2748 p-value 1-P(Z5%, i fail to reject Ho.

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Answered Same DayApr 16, 2021

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Pooja answered on Apr 16 2021

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1)
z = (mean-u)/(sd/sqrt(n)) = (1038-1000)/(400/sqrt(100)) = 0.95
type II error = P(z3874
critical value, z(a/2)
z(0.05/2)
1.960
CI = mean +- z(a/2,n-1)*(sd/sqrt(n))
lower    = 10038 - 1.96*(400/sqrt(100))=    9959.60
upper    = 10038 + 1.96*(400/sqrt(100))=    10116.40
3)
Ho: mean is...

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