Question
A teacher administers a test to his class of 30 students. The mean score (out of 100 possible points) is 80. From previous studies, you
A teacher administers a test to his class of 30 students. The mean score (out of 100 possible points) is 80. From previous studies, you know the population standard deviation is 6. Using the sample data given, calculate a 90% confidence interval for the population mean.(A) 75 - 78(B) 77 - 83(C) 78 - 82(D) 75 - 85
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College Algebra Real Mathematics, Real People
Authors: Ron Larson, Gaylord N Smith
6th Edition
1133714978, 9781133714972
