Question
The annual salary of teachers in a certain state has a mean ofLaTeX: mu= =$ 54,000 and standard deviation of LaTeX: sigma= = $ 5,000
The annual salary of teachers in a certain state has a mean ofLaTeX: \mu= =$ 54,000 and standard deviation of LaTeX: \sigma= = $ 5,000 .
Use this information to answer the questions below.
What is the probability that the mean annual salary of a random sample of 64 teachers from this state is less than $52,000?
Group of answer choices
LaTeX: P\left(Z<-0.4 ight)=0.6554 P ( Z < 0.4 ) = 0.6554 P ( Z < 0.4 ) = 0.6554 P ( Z < 0.4 ) = 0.6554
LaTeX: P\left(Z<-0.4 ight)=0.3446 P ( Z < 0.4 ) = 0.3446 P ( Z < 0.4 ) = 0.3446 P ( Z < 0.4 ) = 0.3446
LaTeX: P\left(Z<-3.2 ight)=0.0007 P ( Z < 3.2 ) = 0.0007 P ( Z < 3.2 ) = 0.0007 P ( Z < 3.2 ) = 0.0007
It is impossible to tell because normality conditions are not met
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