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The main idea of the passage "energy from the wind" is "how wind energy can be useful and helpful".
<h3>What is wind energy?</h3>Wind energy is the the energy gotten from the wind. It is a renewable source of energy which does not cause pollution in the environment. Wind energy is cost efficient because you don't need to replace it from time to time unlike other sources of energy such as fossil fuels.
Wind energy is one of the oldest source of energy, it has been used by the Egyptians to sail ships and the people of the United States also used wind energy to pump water in their farms.
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Considering the p-value of 0.6, the decision is that we do not reject the null hypothesis.
<h3>What are the hypothesis tested?</h3>At the null hypothesis, we test if the proportions are equal, that is:
At the alternative hypothesis, we test if they are different, that is:
- If the p-value is greater than the significance level, we do not reject the null hypothesis.
- If the p-value is less than the significance level, we reject the null hypothesis.
In this problem, the significance level is of 0.1, while the p-value is of 0.6, hence the correct decision for the test is to not reject the null hypothesis.
More can be learned about p-values and hypothesis tests at brainly.com/question/16313918