Answer to Question #336069 in Statistics and Probability for Arian

Question

1. The scores of 9 students in 6 quizzes are: 78, 85, 82, 84, 72, 75, 87, 95 and 90. Find the sample mean and standard deviation. Construct the 99% estimate interval for the 6 scores.

2. The scores of 8 students in 7 quizzes are: 80, 88, 79, 96, 86, 93, 98 and 73. Find the sample mean and standard deviation. Construct the 90% estimate interval for the 7 scores.

3. The scores of 6 students in 4 quizzes are: 88, 81, 76, 96, 80 and 92. Find the sample mean and standard deviation. Construct the 95% estimate interval for the 4 scores.

Answer 1

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