Refer to the diagram below,where the numbers next to the arrows refer to the number of days required for completion of the corresponding activity.What is the critical path? 
Definitions:
Larger Sample Sizes
Referring to the use of a greater number of observations in a study, which can enhance the reliability and precision of statistical estimates.
Estimators
Statistics obtained from sample data used to estimate population parameters.
Unbiasedness
A statistical property indicating that an estimator or methodology does not systematically favor certain outcomes over others.
Sample Variance
The measure of variability in a sample dataset, calculated as the sum of squared deviations from the mean, divided by the number of observations minus one.
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