How do i determine the null and alternative hypotheses then


If the standard deviation in the pressure required to open a? sprung-type valve is σ = 0.8 and the ?quality-control manager feels that the pressure variability has been reduced, how would I determine the null and alternative? hypotheses, explain what it would mean to make a type I? error, and explain what it would mean to make a type II error?

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Business Economics: How do i determine the null and alternative hypotheses then
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