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The Wall Street Journal reported that the average assembly time for a Ford Taurus is μ...

The Wall Street Journal reported that the average assembly time for a Ford Taurus is μ = 38 hours. A modification to the assembly line is made. The standard deviation for assembly time with the modification is σ = 1.2 hours. A random sample of 47 new Ford Taurus automobiles built with the modified assembly line has a mean assembly time = 37.5 hours. Is this enough evidence to suggest the Ford should use the modified assembly line? Show work and reasoning . Use 1% level of significance.

p-value = .0032; The test evidence strongly disputes Ford's claim; do not use the new assembly line.

p-value = .0021; There is not enough evidence at the 1% level of significance to suggest Ford should use the new assembly line.

p-value = .0032; There is not enough evidence at the 1% level of significance to suggest Ford should use the new assembly line.

p-value = .0021; There is enough evidence at the 1% level of significance to suggest Ford should use the new assembly line.
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p-value = .0021; There is enough evidence at the 1% level of significance to suggest Ford should use the new assembly line.

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