Suppose the mean salary for full professors in the united states is believed to be $61,650. a sample of 36 full professors revealed a mean salary of $69,800. assuming the standard deviation is $5,000, can it be concluded that the average salary has changed or is it still the same. (using a 0.05 level of significance)? (this mean you should perform a hypothesis testing h^0: μ_y^0=$61.650) ( provide 2 approached both the "t-test" and "p-value" approach. ) create the 95 % confidence interval for the population mean using the information above?

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

for the free

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statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.