Answer:
The sample mean is obviously different from the population mean, but tests of significance must be done to determine if the difference is statistically significant. The difference could possibly be attributed to chance or to sampling error.
Explanation:
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Answer:
One of such total war practices that was done in World War was rationing of food.
Explanation:
Answer:
D. There is a reduced use of pesticides, herbicides, and fertilizers
Explanation:
1. it can help people learn and study the organisums so if any thing bad happens it helps
2.people can tell if there is something wrong with the animals habitat system more easy than it was before
3.there a scienists that learn about animals life and eco system so they can live like polar bears are going enstinced becuase of global warming so t helps them stop it
hope this helps :)