Part 1 Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):

Number of hours in school per day	4	5	6	7	8
Sample A: Number of students	70	100	125	135	70
Sample B: Number of students	80	90	120	125	85

Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correctMeg or Tara? Explain your answer in two or three sentences.Make sure to use facts to support your answer.

Part 2 The table below shows the size of nine families selected at random from two neighborhoods in a large city:

Family Size (in number of people)

Neighborhood Q	6	3	1	2	3	2	5	1	2
Neighborhood S	5	2	4	3	5	3	2	4	5

Which neighborhood appears to have a bigger family size? Explain your answer using two or three sentences.Make sure to use facts to support your answer