Given the following additional duration data for this project:

Activity Best Case Most Likely Worst Case

H $457$

I $367$

J $345$

K $223$

L $568$

M $235$

N $7910$

O $122$

P $446$

Q $235$

$5)$ What is the expected duration of activity P$?($enter $2$ decimal places$)$

$6)$ What is the standard deviation of activity N$?($enter $2$ decimal places $-$ if it is less than one, enter the zero and the decimal point$)$

$7)$ What is the standard deviation of the project? $($enter $2$ decimal places $-$ if it is less than one, enter the zero and the decimal point$)$

$8)$ Assuming the expected duration of the project is $25\mathrm{.}5$ and given the following z table, what is the probability the project will be finished by the original most likely time? $($enter it as a decimal $-$ with $2$ decimal places $-$ enter the zero and the decimal point$)$