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lie ia l 17-13. A random sample of boots worn by 36 soldiers in a desert region showed an average lke of 1-08 years with a standard deviation of 0-6 years. Under the standard conditions, the boots are Inown to have an average life of 1:28 years. Is there a reason to assert, at 1% level of significance, that use in desert causes the mean life of such boots to decrease ? What will be your conclusion if the level of significance is 5% ? Assume that the life of boots is normally distributed.

lie ia l 17-13. A random sample of boots worn by 36 soldiers in a desert region showed an average lke of 1-08 years with a standard deviation of 0-6 years. Under the standard conditions, the boots are Inown to have an average life of 1:28 years. Is there a reason to assert, at 1% level of significance, that use in desert causes the mean life of such boots to decrease ? What will be your conclusion if the level of significance is 5% ? Assume that the life of boots is normally distributed.

Calculus For The Life Sciences
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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lie L- 17 13. A random sample of boots worn by 36 soldiers in a desert region showed an average Jke of 1:08 vears with a standard deviation of 0-6 years. Under the standard conditions, the boots are Inown to have an average life of1·28 years. Is there a reason to assert, at 1% level of significance, that use in desert causes the mean life of such boots to decrease ? What will be your conclusion if the level of significance is 5% ? Assame that the life of boots is normally distributed.
Transcribed Image Text:lie L- 17 13. A random sample of boots worn by 36 soldiers in a desert region showed an average Jke of 1:08 vears with a standard deviation of 0-6 years. Under the standard conditions, the boots are Inown to have an average life of1·28 years. Is there a reason to assert, at 1% level of significance, that use in desert causes the mean life of such boots to decrease ? What will be your conclusion if the level of significance is 5% ? Assame that the life of boots is normally distributed.
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