hiihihihij

12.12.2019 • 

English

Victor had never been an idle person who languished on the couch watching reruns of old comedy shows; instead, victor was an inventor. victor enjoyed inventing objects that improved people's lives. when victor's mother became despondent after trying to reach the high shelves in the kitchen without a ladder, victor's eager mind reeled. he began to formulate a tool that would reach the object and the user safely remove the object from the shelf. he worked many hours on his invention; however, the laborious task was well worth it. his "super-wonder-grabber," as he dubbed it, allowed his mother to efficiently and dexterously retrieve items from the tallest of shelves. which best describes what the author accomplished in section one? a) describing the problem and primary situation b) establishing the traits of the main character c) introducing multiple points of view d) creating interest with sensory details and figurative language

Ответ:

Annamea

25.07.2020

English

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hello some part of your question is missing below is the missing part

If Dayton's machine is being used on a trial basis, should its purchase be considered?  C.V.(S) =  Test Statistic=   P-Value=   Decision: Conclusion:

answer :

i ) Cv(s) = 51.739

ii)  T = 44.8

iii)  p-value  = 0.0082

iv)   we do not fail to reject H0 ( since p-value < 0.05 )

v ) The new machine fills the bottles with a lesser variation

Step-by-step explanation:

we will test the hypothesis in regards to the standard deviation of the population

The hypothesis are    

H0 : б = 0.15

Ha : б < 0.15

hence at ∝ = 0.05    where n = 71

i) critical point for left sided test =

hence Cv(s) = 51.739

ii) Test statistic = T = ( n - 1 ) s^2 / б^2

 s = 0.12 , n = 71 , б = 0.15

hence T = 44.8

iii) P-value =  p ( < 44.8 )  = 0.0082

iv ) Decision : we do not fail to reject H0 ( since p-value < 0.05 )

v ) conclusion : The new machine fills the bottles with a lesser variation

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