Find the median of the following two data sets:

Data set #1:{5, 4, 5 ,6, 7, 5, 6, 8, 7 ,5}

Data set #2: {16, 7, 11, 13, 2, 4, 5, 7, 15, 25, 21, 9, 22}

a.

Data set #1 = 5.8; Data set #2 = 12.1

b.

Data set #1 = 5.5; Data set #2 = 5

c.

Data set #1 = 7; Data set #2 = 11

d.

Data set #1 = 5.5; Data set #2 = 11

e.

Data set #1 = 7; Data set #2 = 5

What is the goal of the least square approach to regression analysis?

a.

Maximize the sum of squared errors

b.

Minimize the total sum of square

c.

Minimize the sum of squared errors

d.

Minimize the predicted errors

e.

Maximize the total sum of square