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Alona [7]
3 years ago
11

Design an experiment to determine whether a new drug that is supposed to reduce hyperactivity in children actually does. Your es

say should include and identification and description of all the components of your experimental design, including sampling, independent and dependent variables, controls, and the method that you would employ to evaluate the outcome.
Social Studies
1 answer:
castortr0y [4]3 years ago
8 0

Answer & Explanation :-

Research Design is the overall strategical blueprint layout of research; denoting about collection, measurement, analysis of data

  • Data variables are independent & dependent variables.

- Dependent variable is the variable being effected by other variables. In this case, it is 'Hyperactivity in children'

- Independent variable(s) are the causal variables which effect the dependent variable. In this case, it is 'New Drug'

  • Data is collected through sampling method. Sample of children will be selected from entire population of children.
  • Data is analysed on the basis of relationship between variables, through hypothesis testing

- Null Hypothesis [H0] : New drug has no impact on children hyperactivity

- Alternate Hypothesis [H1] : New drug decreases children hyperactivity

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Answer: Yes

Explanation: 19th Amendment along with John Makers Clause in the Constitution of the United States of America.

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1. Harry Truman was the president of
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uk

Explanation:

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8.Which of the following best describes how abolitionists viewed the Fugitive Slave Act of 1850?
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Explanation:

The act was to catch any runaway slaves in the south and including the north. There were many abolitionists in the north, so they hated the act.

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7 0
3 years ago
Eleven-month-old Jake will look for toys that are hidden. However, if his father hides the toy in a new place while Jake watches
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Answer:

A-not-B error.

Explanation:

A-not-B error is shown by children under the age of one year, which is determined by their ability of object permanence (mental capacity to perceive objects in their mind). This error is reflected in the behavior of infants when an object is repetitively hidden at a particular position (A) but when it is replaced to a new position (B) infant still looks for the object at position (A).

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3 years ago
Joel and Sara are filing Married fling jointly. Their taxable income is $340,000. What is their 2018 income tax? a. $70,179 b. $
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Answer: d. $72,179

Explanation:

For couples filing jointly in 2018, their tax rates are as follows:

10% for $0 to $19,050

12% for $19,051 to $77,400

22% for $77,401 to $165,000  

24% for $165,001 to $315,000

32% for $315,001 to $400,000

But income tax is progressive, so the tax rate only applies to the amount in that bracket above the basic tax. So their first income of $19050 is taxed at 10% and the next  58350 is taxed at 12% and so on.

For a taxable income of 340000 , the applicable tax is as follows:

19050 at 10% = 1905

58350 at 12% = 7002

87600 at 22% = 19272

150000 at 24% = 36000  

25000 at 32% = 8000

1905  + 7002  + 19272  + 36000 +  8000  = $72,179

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