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Category > Statistics Posted 02 Aug 2017 My Price 10.00

Freckling of super alloy ingots

Freckling of super alloy ingots. Refer to the Journal of Metallurgy (Sept. 2004) study of freckling of super alloy ingots, presented in Exercise 2.187 (p. 101). Recall that freckles are defects that sometimes form during the solidification of the ingot. The freckle index for each of n = 18 super alloy ingots is shown in the next table and saved in the FRECKLE file. In the population of super alloy ingots, is there evidence to say that 50% of the ingots have a freckle index of 10 or higher? Test, using a = .01.

Exercise 2.187

Freckling of superalloy ingots. Freckles are defects that sometimes form during the solidification of alloy ingots. A freckle index has been developed to measure the level of freckling on the ingot. A team of engineers conducted several experiments to measure the freckle index of a certain type of superalloy (Journal of Metallurgy, Sept. 2004). The data for n = 18 alloy tests are shown in the table and saved in the FRECKLE file.

a. Construct a box plot for the data and use it to find any outliers.

b. Find and interpret the z -scores associated with the alloys you identified in part a

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Alpha Geek
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Status NEW Posted 02 Aug 2017 07:08 AM My Price 10.00

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file 1501659115-1803642_1_636372200129379599_Alloystats 1.docx preview (295 words )
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