mid02_sample - Midterm 2(Sample) ISyE2028A, Summer 2010...

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Midterm 2(Sample) ISyE2028A, Summer 2010 Georgia Institute of Technology Time: 9:20AM-10:30AM Friday July 9, 2010. 1. It is a close book exam. However eight page double-sided notes is acceptable. 2. You may use a calculator. During the exam, it is not allowed to share a calculator. 3. Please sign the honor code. 4. There are 13 problems, 9 pages. ( Note that the sample test is longer than the real one. ) Name: ______________________(please print) Honor code signature: _______________________.
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ISyE 2028A, Summer 2010 Tuesday July 5 2 Midterm 2 (Sample) Fill in your answers here: Problems: 1 2 3 4 5 6 7 8 Your Answers: 1. Which of the following statement is not true? A. A correct interpretation of a 100(1 )% α confidence interval for the mean µ relies on the long-run frequency interpretation of probability. B. It is correct to write a statement such as [ lies in the interval (70,80)]=.95 P C. The probability is .95 that the random interval 1.96 / Xn σ ±⋅ includes or covers the true value of . D. The interval 1.645 / xn is a 90% confidence interval for the mean . 2. Which of the following statement is not true? A. Provided that the sample size n is large, the standardized variable ( )/( / ) ZX n µσ = is approximately normally distributed, while the variable ( ) Z X Sn = is not. B. The formula /2 / xz s n is a large-sample confidence interval for with confidence level approximately 100(1 )% . C. Generally speaking, n >40 will be sufficient to justify the use of the formula / as a large-sample confidence interval for .
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This note was uploaded on 09/02/2010 for the course ISYE 2028 taught by Professor Shim during the Summer '07 term at Georgia Institute of Technology.

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mid02_sample - Midterm 2(Sample) ISyE2028A, Summer 2010...

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