A researcher wants to study the effect of team empowerment on working capability of teams. A sample of 16 teams of workers completed a specific task in an average of 26.4 minutes with a standard deviation
of 4.0 minutes. Construct a 95% confidence interval for the mean time required to complete the task.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

i dont know what you want me to answer for this but im guessing 2: 11?