Two researchers conducted a study in which two groups of students were asked to answer 42...

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Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game.

math Statistics-And-Probability

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Answer 1

Answer #1

The statistic software output for this problem is:

Two sample Z summary confidence interval: Ni: Mean of population 1 (Std. dev. = 4.4) H2 : Mean of population 2 (Std. dev. = 2

The 90% confidence interval is :

Lower limit = 6.406

Upper limit = 7.594

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Answer 2

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