Please Solve the Question as shown in the Image and put screenshot of Excel Sheet in answer

Problem $2$ :Given the information

Part $1-$ Complete the table by calculating the expected time, variance and standard deviation for every task. Replace the $"?"$ with your values. $(15$ Points$)$

Place a $"$Y$"$ in the last column, if the activity is critical.

Place a $"$N$"$ in the last column, if the activity is non$-$critical.

Part $2$: Answer the questions asked and replace the $"?"$ with your values $($show how the numbers are derived$).(20$ Points$)$

$2\mathrm{.}1.$ Expected Completion of this project is $?$

$2\mathrm{.}2.$ Std$.$ Deviation of critical path is $?$

$2\mathrm{.}3.$ Probability of finishing this project $10$ days sooner is$??$

$2\mathrm{.}4.$ Number of days needed to complete this project with a $90\%$ probability of being met is: $?$

Part $3-$ Based solely on the provided information for this project, identify the activity that you believe carries the highest risk in terms of meeting the expected completion time. Please explain your choice. If you are highlighting multiple activities, begin with the most risky, and subsequently elaborate on each one. For every activity you include, provide a rationale for your selection. $(5$ Points$)$Part $2$: $,$ Answer the questions asked and replace the $"?"$ with your values $($show how the numbers are derived$).(20$ Points$)$