Question: Active versus passive learning, continued. (a) Use the data in Exercise 18.46 to give a 90% confidence interval for the difference in mean number of

Active versus passive learning, continued.

(a) Use the data in Exercise 18.46 to give a 90% confidence interval for the difference in mean number of Blissymbols identified correctly by children after active and passive lessons.

(b) Give a 90% confidence interval for the mean number of Blissymbols identified correctly by children after the active lesson.

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