Use the following to answer questions :
A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000.A random sample of 53 lawyers selected from the city reveals a mean annual salary of $114,000.Assume that $17,000,and that the test is to be made at the 1% significance level.
-What are the critical values of z?
A)-1.96 and 1.96
B)-2.58 and 2.58
C)-2.33 and 2.33
D)-2.05 and 2.05

Question

Use the following to answer questions :
A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000.A random sample of 53 lawyers selected from the city reveals a mean annual salary of $114,000.Assume that  $17,000,and that the test is to be made at the 1% significance level.
-What are the critical values of z?
A)-1.96 and 1.96 
B)-2.58 and 2.58 
C)-2.33 and 2.33 
D)-2.05 and 2.05

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The Answer of Use the following to answer questions :
A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000.A random sample of 53 lawyers selected from the city reveals a mean annual salary of $114,000.Assume that  $17,000,and that the test is to be made at the 1% significance level.
-What are the critical values of z?
A)-1.96 and 1.96 
B)-2.58 and 2.58 
C)-2.33 and 2.33 
D)-2.05 and 2.05

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