Question: can u help me with it PROB.9 It is a major factor in the quality of the produced semiconductor that the variability in thickness of

can u help me with it

PROB.9 It is a major factor in the quality of the produced semiconductor that the variability in thickness of a component used in semiconductor production from part to part is low. A random sample of 18 components has a thickness variance s2=0.43 mm2. The component manufacturer considers that the production is under control if the variance of production is less than 0.26mm2. Test the hypothesis that HO: 62=0.26 against the alternative, H1: 62 > 0.26 with 0.05 level of significance. Assume that the measurements are a random sample taken from a normally distributed population

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