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kumpel [21]
2 years ago
8

Areas of major ozone thinning, called ozone holes, appear regularly over Antarctica, the Arctic, and northern Eurasia as a resul

t of
A. Greenhouse Effect
B. Carbon Monoxide
C. Genetic Engineering
D . Ozone Depletion
Social Studies
1 answer:
Tanya [424]2 years ago
4 0
It is A i think if that is right
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Dr. Rodriguez was interested in how quickly students help someone who has fallen and who was perceived as having a health proble
Aleonysh [2.5K]

Answer:

Kindly check explanation

Explanation:

Given the data :

Person perceived as having health problem

No witnessing fall _____ secs it takesto respond

1 _______________25

3 ______________ 60

5 ______________ 180

Person perceived as not having health problem

No witnessing fall _____ secs it takesto respond

1 _______________90

3 ______________ 180

5 ______________ 360

A.)

The dependent variable, also the predicted variable is 'how quickly students respond to the person who fell'

The Independent variable refers to the predictor variable which influences the outcome of the dependent variable. The independent variables are ;

Number of students in the room ;

Perception of health problem in the person who fell.

2.)

The possible confounding variable may be the cane being held by one of the confederates, as this might cause a disruptive association between the dependent and independent variable.

3.)

From the result of the experiment, it could be observed that there is a positive trend between the number of witnesses(student in the room) and the time it took students to respond to someone who has fallen.

4.

Σfx / Σf

[(90*1) + (180*3) + (360*5)] ÷ (1+3+5)

2430 / 9

= 270

a.

Descriptive statistics uses statistical measures to describes the numerical or quantitative measures of a data. Descriptive statistics sucha as mean, median, mode and so on.

Inferential statistics is used to make possible deductions or predictions from a data sample. It allows us to make conclusions about a certain population from a sample to f the population data.

b.

Based on Inferential statistics and hypothesis testing of the sample data, various hypothesis test statistics may be used to establish or conclude about a population characteristics from sample data.

7 0
3 years ago
HELP MEH PLS REEEE 20 POINTS
Eduardwww [97]

Answer:

B- cause we're greedy weeds

Explanation:

5 0
3 years ago
The health education philosophy that espouses the enactment of policies or laws to enhance the health of individuals and groups
tamaranim1 [39]
The health education philosophy that espouses the enactment of policies or laws to enhance the health of individuals and groups is: <span>social change philosophy</span>
6 0
3 years ago
In which American region were groups of Native Americans known for living in long houses and using "slash and burn" techniques f
Ganezh [65]
That would be the great plains 
3 0
3 years ago
Which of the following is not part of testing a hypothesis?
Lyrx [107]

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

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3 years ago
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