Question: lite Mail - Marsean Question 15 O Question 15 ZO/I pt 03 099 i Details toring )roctor One hundred teachers attended a seminar on mathematical

lite Mail - Marsean Question 15

O Question 15 ZO/I pt 03 099 i Details toring )roctor One hundred teachers attended a seminar on mathematical problem solving. The attitudes of a representative sample of 12 of the teachers were measured before and after the seminar. The differences between their pre-seminar scores and post-seminar scores are shown below. (a) What is the mean change score? Round your answer to the nearest tenth, if necessary. (b) What is the median change score? Question Help: Video 1 E) Video 2 E Message instructor Submit Question 22

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