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employees at a construction and mining claim that the mean salary of the companys mechanicla engineer is less than

User Shawn Hall
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To properly state the hypothesis, information about the significance level and the null and alternative hypothesis should be included. Here is an example:

The significance level is set to 0.05. The null hypothesis is that the mean salary of the company's mechanical engineer is greater than or equal to $70,000 per year. The alternative hypothesis is that the mean salary of the company's mechanical engineer is less than $70,000 per year.

Hypothesis: The mean salary of the company's mechanical engineer is less than $70,000 per year.

Symbolically:

H₀: μ ≥ $70,000

H₁: μ < $70,000

Note: μ is the population mean salary of the company's mechanical engineer.
User Luismi
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