Answer:
Given,
n = 10 , s= 1.1
Type I error = P ( reject H0 | H0 is true )
P ( X̅ > 0.10 | µ = 0 )
Z = ( X - µ ) / ( σ / √(n))
Z = ( 0.05 - 0 ) / ( 1.1 / √ ( 10 ) )
Z = 0.143
P ( X̅ > 0.05 ) = 1 - P ( Z < 0.143 )
P ( X̅ > 0.05 ) = 1 - 0.5557
P ( X̅ > 0.05 ) = 0.4443
part 2)
P ( Type I error ) = 0.4443
Z = ( X - µ ) / (σ/√(n)
Z = ( 0.05 - 0.35 ) / ( 1.1 / √10 )
Z = - 0.8624
P ( Z < -0.86 ) = 0.1949
Type I error = P ( Accept H0 | H0 is false )
P ( X̅ <= 0.05 | µ = 0.35 )
P ( Type II error ) = 0.1949
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