Measurements of the specific gravity

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Reference no: EM131830864

The following are 10 measurements of the specific gravity y of the same sample of an alloy:

2335_measurements of the specific gravity.png

(a) Calculate the average y and standard deviations for this sample of n = 10 observations.

(b) Plot the residuals y- y in time order.

(c) It is proposed. to make an analysis on the assumption that the 10 observations are a random sample from a normal distribution. Do you have any doubts about the validity of this assumption?

Reference no: EM131830864

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