Answer: 56.71
Step-by-step explanation:
Given : The amounts of time (in months) that the employees of a restaurant have been working at the restaurant is given by :-
1 5 6 8 11 14 17 46 61 90 99 126 143 167
The mean for the given sample data is given by :-
[tex]\text{Mean}=\dfrac{\text{Sum of all data values}}{\text{Number of data values}}\\\\=\dfrac{794}{14}\approx56.71[/tex]
The mean for the given sample data is 56.71.