Null hypothesis is the hypothesis that the effect relationship, or the other manifestations of variables and data under investigation does not exist.
I null hypothesis , a study is started in which an assumption is made that there is no difference between the experimental and control groups.
This assumption of no difference between between the experimental and control groups is known as null hypothesis.
If the results of the study indicate a P value, it indicates that there is a difference between the groups and it is determined with the help of the P value that this difference is due to chance.
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Answer:
If there are no easily visible signs, a lax inspection might miss contamination by bugs.
Explanation:
Answer:
Explanation:
Teen girls between 15 and 19 and young women in their early 20s are most at risk
Boomtowns become ghost towns because the economic activity that supported it once, have failed. There's other reasons too like, human-caused disasters such as flooding, <span>prolonged droughts, government actions, uncontrolled lawlessness, war, pollution, or nuclear disasters. Mining also causes people to leave when they can't produce anymore gold and silver. When the Gold Rush ended, the prospectors didn't provide business for towns anymore.
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