Question

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):

Sample A: Number of students
70 4 hours
100 5 hours
125 6 hours
135 7 hours
70 8 hours

Sample B: Number of students
80 4 hours
90 5 hours
120 6 hours
125 7 hours
85 8 hours


Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences.

Answer 1

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