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9.33 Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 90% confidence level to a 99% confidence level b. Changing from a sample size of 30 to a sample size of 200 c. Changing from a standard deviation of 20 pounds to a standard deviation of 25 pounds

9.33 Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 90% confidence level to a 99% confidence level b. Changing from a sample size of 30 to a sample size of 200 c. Changing from a standard deviation of 20 pounds to a standard deviation of 25 pounds

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 21E
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9.33
ab Window Help X P SECTION 9.3 9.33 403-abf9e2add3f5/pages/abed62d6372492877c71244e82d2fb9cae5fd01ab?location=%7B"id"%3A... 9.34 Home | bartleby 9.35 x Chapter 9: Section Exercises Q 8 . Fri Aug 5 11:26 AP we change our ca Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 90% confidence level to a 99% confidence level b. Changing from a sample size of 30 to a sample size of 200 c. Changing from a standard deviation of 20 pounds to a standard deviation of 25 pounds Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 95% level of confidence to a 90% level of confidence b. Changing from a sample size of 30 to a sample size of 20 c. Changing from a standard deviation of 3 inches to a standard deviation of 2.5 inches Potatoes The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found to be 21.0, 21.5, 20.5, and 21.2 pounds. Assume
Transcribed Image Text:ab Window Help X P SECTION 9.3 9.33 403-abf9e2add3f5/pages/abed62d6372492877c71244e82d2fb9cae5fd01ab?location=%7B"id"%3A... 9.34 Home | bartleby 9.35 x Chapter 9: Section Exercises Q 8 . Fri Aug 5 11:26 AP we change our ca Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 90% confidence level to a 99% confidence level b. Changing from a sample size of 30 to a sample size of 200 c. Changing from a standard deviation of 20 pounds to a standard deviation of 25 pounds Confidence Interval Changes State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 95% level of confidence to a 90% level of confidence b. Changing from a sample size of 30 to a sample size of 20 c. Changing from a standard deviation of 3 inches to a standard deviation of 2.5 inches Potatoes The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found to be 21.0, 21.5, 20.5, and 21.2 pounds. Assume
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