In a packing plant, one of the machines packs jars into a box. A sales rep...

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In a packing plant, one of the machines packs jars into a box. Asales rep for a packing machine manufacturer comes into the plantsaying that a new machine he is selling will pack the jars fasterthan the old machine. To test this claim, each machine is timed forhow long it takes to pack 10 cartons of jars at randomly chosentimes. Given a 95% confidence interval of (-13.84, -6.68) for thetrue difference in average times to pack the jars (old machine -new machine), what can you conclude from this interval?
Question 3 options:
1)
We are 95% confident that the average packing time of the oldmachine is greater than the new machine. The sales rep appears tobe correct.
2)
We are 95% confident that the average packing time of the newmachine is greater than the old machine. The sales rep does notappear to be telling the truth.
3)
We are 95% confident that the difference between the two samplemeans falls within the interval.
4)
We do not have enough information to make a conclusion.
5)
There is no significant difference between the average packingtimes of the two machines. The sales rep does not appear to betelling the truth.

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2) We are 95% confident that the average packing time of the new machine is greater than the old machine . The sales rep does not appear to be telling the truth.

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