A precision instrument is guaranteed to read accurately to

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A precision instrument is guaranteed to read accurately to within 2 units. A sample of four instrument readings on the same object yielded the measurements 353, 351, 351, 355.

a.) Test the null hypothesis that? = 0.7 against the alternative ? >0.7 Use alpha = 0.05

b.) What is the 95% CI for sigma?

c.) What is the critical value?

d.) What is the correct decision?

Reference no: EM13621619

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