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Talja [164]
3 years ago
10

The null and alternative hypothesis

Mathematics
1 answer:
frez [133]3 years ago
6 0
<span>The null hypothesis states that a population parameter is equal to a value. The null hypothesis is often an initial claim that researchers specify using previous research or knowledge. ... The alternative hypothesis is what you might believe to be true or hope to prove true.</span>
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A group of seven musicians includes three violinists and four harpists. An instructor randomly selects one of the musicians to p
katrin2010 [14]

Answer:

They are dependent events. Event A is choosing one musician while Event B is choosing another musician. THey are ALL musicians, no matter what instrument they play, we just know that there are 7 musicians in total. Therefore, the events are dependent because after choosing one musician, you would have 6 musicians left, instead of 7.

Step-by-step explanation:

3 0
3 years ago
Which integer is the smallest?<br> A. 34<br> B.-4<br> C.-84<br> D. 24
NISA [10]

Answer:

C. -84

Step-by-step explanation:

It is the smallest because when placed on a number line, it will be the farthest left.

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2 years ago
This diagram shows triangles ABC and PQR.
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Answer:

<h3>A reflection across the line x=3, a reflection across the x-axis and a dilation with a scale factor of 2, because each side is double.</h3><h3>Step-by-step explanation:</h3>

We know that the first transfomration is a rotation 90° clockwise.

Notice that vertex R is at the same horizontal coordinate than vertex C, which means the second transformation must include a reflection across the line x=3, a reflection across the x-axis and a dilation with a scale factor of 2, because each side is double.

6 0
3 years ago
If the annualized GDP growth rates for four consecutive quarters are 2.0%, 0.9%, 0.8%, and 1.2%, estimate the growth rate for th
alexira [117]

Answer:

4.9%

Step-by-step explanation:

GDP is the growth domestic product of a country over a chosen time period

When the GDP growth rate is reported quarterly , you add together the four quarters for the year to find the annual GDP growth rate.

Given the four consecutive quarters as; 2% , 0.9%, 0.8% and 1.2%

Growth rate for the year will be;

=2+0.9+0.8+1.2=4.9

4.9%  is the annualized growth rate

8 0
3 years ago
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It falls 30 seconds behind every 15 minutes
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