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2 years ago

Recall the experiment comparing patients 4 weeks after surgery for carpal

Mathematics

1 answer:

dimulka [17.4K]2 years ago

3 0

Answer:

4. H0: u1= u2 Ha; u1≠ u2

5. The smaller value of p supports the null hypothesis.

Step-by-step explanation:

4. The null and alternate hypotheses are

H0: u1= u2 i.e there no difference between the mean pinch strengthof the two surgeries

against the claim

Ha; u1≠ u2 i.e there a difference between the mean pinch strengthof the two surgeries

It can be written like this as well

H0: u1 -u2= 0 i.e there no difference between the mean pinch strengthof the two surgeries

against the claim

Ha; u1 -u2≠ 0 i.e there a difference between the mean pinch strengthof the two surgeries

Part 5. The test having a p- value less than 0.05 tells that the null hypothesis cannot be rejected. Theres no evidence to reject the null hypothesis.

The smaller value of p supports the null hypothesis.

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Which statement best describes why liquid water exists on Earth?

Vikki [24]

Complete Question:

Which statement best describes why liquid water exists on earth?

A. Earth experiences comet crashes and volcanic eruptions.

B. Earth experiences a strong magnetic field and lunar tides.

C. Earth has moderate temperatures and a strong gravitational force.

D. Earth has hydrogen bonds with the sun

Correct Answer:

Earth has a moderate temperature and strong gravitational force. This is the reason for existence of liquid water on Earth.

Step-by-step explanation:

Liquid water has the chemical formula of H₂O. So it is composed of mainly hydrogen and oxygen molecules with the present of different materials present in it based on the place it is located. As the water molecules are bonded by weak van der waals bond, it can be easily broken with the boiling point of 100 °C.

Thus, the existence of liquid water is possible in moderate temperature. Also the strong gravitational force of Earth helps to keep the liquid water stable in Earth. Thus, the strong gravitational force and the moderate temperature condition of Earth is responsible for liquid water existence on Earth.

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2 years ago

Find the volume of the composite solid.

OLEGan [10]

Here's the solution,

the volume of the given figure is :

=》

$volume \: \: of \: \: (pyramid \: + rectangular \: \: prism)$

volume of pyramid :

=》

$\dfrac{l \times b \times h}{3}$

=》

$\dfrac{4 \times 5 \times 6}{3}$

=》

$\dfrac{120}{3}$

=》

$40$

volume of pyramid = 40 cm³

now, volume of rectangular prism :

=》

$l \times b \times h$

=》

$4 \times 5 \times 2$

=》

$40$

volume of rectangular prism = 40 cm³

volume of composite figure = 40 + 40

=》80 cm³

4 0

2 years ago

A computer randomly selects a number from the given set.

SSSSS [86.1K]

23 for 5=6

Step-by-step explanation:

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3 years ago

Anybody know the answer ?

AlladinOne [14]

I think its idfk…maybe?!?

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2 years ago

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A can of soft drink at room temperature is put into the refrigerator so that it will cool. Would you model the can of soft drink

zhannawk [14.2K]

Answer:

closed System

Step-by-step explanation:

Metal is a conductor of heat, coolness, and electricity. In terms of electricity, only closed circuits will work because electricity flows in a closed loop. If the can is being cooled successfully, then the heat is flowing out of the can into the fridge while cool air from the fridge is flowing into the can forming a loop. So the answer is a closed system.

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2 years ago