Question: solve A ten year old study concluded that cargo truck drivers for Niagara shipping Co. are exposed to 32 hours of air pollution per month,

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A ten year old study concluded that cargo truck drivers for Niagara shipping Co. are exposed to 32 hours of air pollution per month, on average. A researcher claims that this value has changed from the value it was 10 years ago. The null hypothesis Ho can be expressed as: Op 10 78 = TO Op

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