Amanda is aware that if her class performs well, she will be nominated for the award that is received by the teacher whose class scores the highest in the state. This scenario is reflective of the assumptions of the <em>expectancy theory</em>. The expectancy theory was proposed by Victor Vroom in 1964. This theory states that the motivation of an employee is determined by the expectancy that better efforts will lead to the expected performance, and this will be followed by the nomination to the award. The stress is put on the expected outcome of the effort.

4 0

3 years ago

The average life expectancy of tires produced by the Whitney Tire company has been 40,000 miles. Management believes that due to

Aneli [31]

Answer:

b. Null hypothesis : $\mu \leq 40000$

Alternative hypothesis: $\mu >40000$

Explanation:

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

On this case the Management try to proof that due to a new production process, the life expectancy of its tires has increased. So this needs to be on the alternative hypothesis. And the complement of the alternative hypothesis would be on the null hypothesis.

Null hypothesis : $\mu \leq 40000$

Alternative hypothesis: $\mu >40000$

Other important thing is that on the alternative hypothesis we never can have the symbol equal.

Based on this the best option on this case is b.

3 0

3 years ago