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Part A) State the null and alternative hypothesis for each of the following scenarios Part B)...

Part A) State the null and alternative hypothesis for each of the following scenarios

Part B) State the hypothesis test (one sample t-test, one sample z-test, two sample t-test, two sample z-test, paired test) that applies to the situation

A) Weekly data on the percentage of damaged inventory for 10 weeks before and 10 weeks after the implementation of new environmentally friendly techniques meant to reduce waste. You wish to see if the green management techniques have significantly improved practices.

B) The percent change in weight as a result of water diffusion for a particular composite material to simulate the effect of weather. You wish to ascertain whether this material experiences less than 0.5% average weight gain for this type of diffusion.

C) The densities of a number of samples of a particular type of polymer compound. You would like to see whether the average density is larger than 3.50.

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