4. Conduct a hypothesis test showing all of your steps. In a packing plant, a machine packs jars into boxes. In a random sample of 19 recorded times it took the new machine to pack 10 boxes, the mean was 42.06 seconds with a standard deviation of 0.68 seconds. In random sample of 14 recorded times it took the old machine to pack 10 boxes, the mean was 43.15 seconds with a standard deviation of 0.79 seconds. Can claim the mean time the new machine packs boxes is lower than the old machine? Test this claim you with a 2% level of significance. balust a) State the hypotheses and label the claim. b) Is the testleft-tailed, fight tailed, or two-tailed (circle one)?

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