A Vermont company is monitoring a process that fills maple syrup bottles. When the process is…

A Vermont company is monitoring a process that fills maple
syrup bottles. When the process is filling correctly, the median average fill
in an 8-ounce bottle of syrup is 8.03 ounces. The last 15 bottles sampled
revealed the following levels of fill:

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a. Formulate the null and alternative hypotheses needed in
this situation.

b. Do the sample values support the null or alternative
hypothesis?

A major car manufacturer is experimenting with three new
methods of pollution control. The testing lab must determine whether the three
methods produce equal pollution reductions. Readings from a calibrated carbon
monoxide meter are taken from groups of engines randomly equipped with one of
the three control units. The data are in the file Pollution. Determine whether
the three pollution-control methods will produce equal results.

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