Answer:
The cotton gin was a very important technological adcance in the industrial revoulution because it significantly increased the coton production.
The telegraph improved comunications and started the era of information
Explanation:
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70% of Africa has died of aids deaths or HIV
So the type of democracy that engaged a door to door petition trying to get enough signatures for a proposal to be voted on by citizens is called Recall. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications and questions.
Answer:
C. Department of the Interior
President Jimmy Carter
Explanation:
Answer: D. Modelling.
Modeling is not part of hypothesis testing.
Explanation:
Hypothesis testing is an essential procedure in statistics. A hypothesis test evaluates two mutually exclusive statements about a population to determine which statement is best supported by the sample data. When we say that a finding is statistically significant, it's thanks to a hypothesis test.
Steps in testing hypothesis
1. State the hypotheses. Every hypothesis test requires the analyst to state a null hypothesis and an alternative hypothesis. ...
2. Formulate an analysis plan. The analysis plan describes how to use sample data to accept or reject the null hypothesis. ...
3. Analyze sample data. ...
4. interpret the results