1b , 1c and 1d

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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1b , 1c and 1d
A random sample of 95 light bulbs had a mean hfe of x 531 hours witha standard deviation of o 33 hours Corstruct a 90
percent confidence interval for the mean life, p, of all light bulbe of this type
1b) Construct a 95% confidence interval for Question #1.
1c) Construct a 90% confidence interval for Question # 1.
1d) What happens as you increase the confidence level?
Transcribed Image Text:A random sample of 95 light bulbs had a mean hfe of x 531 hours witha standard deviation of o 33 hours Corstruct a 90 percent confidence interval for the mean life, p, of all light bulbe of this type 1b) Construct a 95% confidence interval for Question #1. 1c) Construct a 90% confidence interval for Question # 1. 1d) What happens as you increase the confidence level?
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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,