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Lesson 2 Length of Confidence and Appropriate Sample Size What's In A. Fill in the blank with the correct word or group of words to make a meaningful statement. Write your answer on a separate sheet of paper. 1. Statistically, rounding up of 111.12 is 2. A confidence level is the confidence coefficient and is expressed as 3. For a 95% confidence level, the confidence coefficient is 4. When a 99% confidence level is selected, a = 5. The standard deviation of a sampling distribution is called 6. A subset of the interest population is called B. Answer the following: 1. 1 - 0.38 4. (1.96)(5.3) 2 0.2 5. (2.58) (2.5) 2 2. (0.35) (0.65) 0.10 3. 1.96(2) 0.06 9Module Length of Confidence Interval & 1 Appropriate Sample Size What I Know A. Find the length of the following confidence interval. Show your solutions. 4. Upper confidence limit = 0.632 1. 0.0254