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The life span of a 30-watt LED light is known to be normally distributed with o = 20 hours. A random sample of 20 LED light has a mean life of = 1020 hours. Compare the 90% confidence lower bound of this confidence interval with a two-sided confidence interval. Which standard normal curve applies to the 90% confidence level? Include your solutions. O a CI lower bourd (1013) and CI two-sided (1011, 1029). Lower bound of tke one-sided confidence interval. greate: than the lower bound oftwo-s.ded -3 -2 -1 2 3 1 Ob. CI lower bound (1014) and CI two-sided (1013, 1027). Lower bound of the one-sided confidence interval is greater than the lower bound of twc-sided -1 1 2 -2 -1 1

The life span of a 30-watt LED light is known to be normally distributed with o = 20 hours. A random sample of 20 LED light has a mean life of = 1020 hours. Compare the 90% confidence lower bound of this confidence interval with a two-sided confidence interval. Which standard normal curve applies to the 90% confidence level? Include your solutions. O a CI lower bourd (1013) and CI two-sided (1011, 1029). Lower bound of tke one-sided confidence interval. greate: than the lower bound oftwo-s.ded -3 -2 -1 2 3 1 Ob. CI lower bound (1014) and CI two-sided (1013, 1027). Lower bound of the one-sided confidence interval is greater than the lower bound of twc-sided -1 1 2 -2 -1 1

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The life span of a 30-watt LED light is known to be normally distributed with o = 20 hours. A random sample of 20 LED light has a mean life of i = 1020 hours. Compare the 90% confidence lower bound of this confidence interval with a two-sided confidence interval. Which standard normal curve applies to the 90% confidence level? Include your solutions. O a. CI lower bound (1013) and CI two-sided (1011, 1029). Lower bound of the one-sided confidence interval is grecater than the lover bound of two-s.ded -3 -2 -1 3 Ob. CI lower bound (1014) and CI two-sided (1013, 1027), Lower bound of the one-sided confidence interval is greater than the lower bound of two-sided -3 -1 1 2 3 -1
Transcribed Image Text:The life span of a 30-watt LED light is known to be normally distributed with o = 20 hours. A random sample of 20 LED light has a mean life of i = 1020 hours. Compare the 90% confidence lower bound of this confidence interval with a two-sided confidence interval. Which standard normal curve applies to the 90% confidence level? Include your solutions. O a. CI lower bound (1013) and CI two-sided (1011, 1029). Lower bound of the one-sided confidence interval is grecater than the lover bound of two-s.ded -3 -2 -1 3 Ob. CI lower bound (1014) and CI two-sided (1013, 1027), Lower bound of the one-sided confidence interval is greater than the lower bound of two-sided -3 -1 1 2 3 -1
O. CI lower bound (1014) and CI two-sided (1013, 1027). Lower bound of the one-sided confidence interval is greater than the lower bound of two-sided 1 2 3 -3 -2 -1 3 O d. NONE
Transcribed Image Text:O. CI lower bound (1014) and CI two-sided (1013, 1027). Lower bound of the one-sided confidence interval is greater than the lower bound of two-sided 1 2 3 -3 -2 -1 3 O d. NONE
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