1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ollegr [7]
2 years ago
5

What are the two decisions that you can make from performing a hypothesis test? what are the two decisions that you can make fro

m performing a hypothesis test? select all that apply
Physics
1 answer:
BigorU [14]2 years ago
3 0

When conducting a hypothesis test there are two possible decisions  that you can make: reject the null hypothesis or fail to reject the null hypothesis.

A statistical hypothesis test is a method of statistical inference used to decide whether the data at hand sufficiently support a particular hypothesis. Hypothesis testing allows us to make probabilistic statements about population parameters.

When conducting a hypothesis test there are two possible decisions: reject the null hypothesis or fail to reject the null hypothesis. You should remember though, hypothesis testing uses data from a sample to make an inference about a population. When conducting a hypothesis test we do not know the population parameters. In most cases, we don't know if our inference is correct or incorrect.

When we reject the null hypothesis there are two possibilities. There could really be a difference in the population, in which case we made a correct decision. Or, it is possible that there is not a difference in the population (i.e.,  is true) but our sample was different from the hypothesized value due to random sampling variation. In that case we made an error. This is known as a Type I error.

When we fail to reject the null hypothesis there are also two possibilities. If the null hypothesis is really true, and there is not a difference in the population, then we made the correct decision. If there is a difference in the population, and we failed to reject it, then we made a Type II error.

Learn more about hypothesis test here : brainly.com/question/15980493

#SPJ4

You might be interested in
The basic building blocks of matter is the -----
stiks02 [169]
<span>The basic building blocks of matter is the atom.</span>
3 0
4 years ago
Read 2 more answers
How does air resistance affect an object’s speed?
tatuchka [14]
When air resistance<span> acts, acceleration during a fall </span>will<span> be less than g because </span>air resistance affects<span> the motion of the falling </span>objects<span> by slowing it down. </span>Air resistance<span> depends on two important factors - the</span>speed<span> of the </span>object<span> and its surface area. Increasing the surface area of an </span>object<span> decreases its </span>speed<span>.</span>
4 0
3 years ago
A plane is flying east at 115 m/s. The wind accelerates it at 2.88 m/s^2 directly northwest. After 25.0s, what is the magnitude
kondaur [170]

Answer:

81.8 m/s

Explanation:

The initial velocity of the plane is:

v_0=115 m/s (toward east)

So, decomposing along the x- and y- directions:

v_{x0} = 115 m/s\\v_{y0} = 0

(we took east as positive x-direction and north as positive y-direction)

The acceleration is

a=2.88 m/s^2 (northwest, so the angle with the positive x-direction is 135 degrees)

Decomposing it along the two directions:

a_x = a cos 135^{\circ} = (2.88 m/s^2)(cos 135^{\circ})=-2.04 m/s^2\\a_y = a sin 135^{\circ} = (2.88 m/s^2)(sin 135^{\circ})=2.04 m/s^2

So the two components of the velocity after a time t = 25.0 s will be

v_x = v_{x0} + a_x t = 115 m/s + (-2.04 m/s^2)(25.0 s)=64 m/s\\v_y = v_{y0} + a_y t = 0 m/s + (2.04 m/s^2)(25.0 s)=51 m/s

So, the magnitude of the velocity of the plane will be

v=\sqrt[v_x^2+v_y^2}=\sqrt{(64 m/s)^2+(51 m/s)^2}=81.8 m/s

6 0
3 years ago
The rainbow of visible colors in the electromagnetic spectrum varies continuously from the longest wavelengths (the reddest colo
Bogdan [553]

Answer:

4.58\times 10^{14}Hz 5.825\times 10^{14}Hz 6.31\times 10^{14}Hz

Explanation:

We know that there is a relation between the speed of light ,frequency and wavelength.This relation can be given as v=\nu \lambda where v is speed of light \nu is frequency of light \lambda is wavelength of light

In first case we have given λ=655 nm

so using formula  v=\nu \lambda

3\times 10^8=655\times 10^{-9}\times \nu

\nu =4.58\times 10^{14} Hz

In second case we have wavelength 515 nm so by using above formula

3\times 10^8=515\times 10^{-9}\times \nu

\nu =5.825\times 10^{14}\ Hz

In third case we have wavelength 475 nm

so 3\times 10^8=475\times 10^{-9}\times \nu

\nu =6.31\times 10^{14}Hz

3 0
4 years ago
A zone reconnaissance involves a directed effort to obtain detailed information on all routes, obstacles, terrain, enemy forces,
son4ous [18]

Answer:

It is True

Explanation:.

A  commander assigns a zone reconnaissance mission when he seeks additional information on a zone before committing other forces in the zone. It is appropriate when the enemy situation is vague,  existing knowledge of the terrain is limited, or combat operations have altered the terrain. A zone  reconnaissance could include several route or area reconnaissance missions assigned to subordinate units.

7 0
3 years ago
Other questions:
  • A car has a mass of 1500. It is traveling north a 8 m/s. What is the cars momentum
    8·1 answer
  • Compare the KE of an 80 kg person walking at 4 m/s with that of the same person moving at 6 m/s.
    8·1 answer
  • The main difference between speed and velocity involves
    13·1 answer
  • A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod uniformly charged to - 15.0 nC are pl
    9·1 answer
  • Help with these below and the above. I will give brainliest and 20 points!
    7·1 answer
  • Definition: A command economy is where a central government makes all economic decisions. The government or a collective owns th
    15·1 answer
  • Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a 100 kg ball tr
    8·2 answers
  • A spring has a constant k= 10.32 N/m and is hung vertically. A 0.400kg mass is suspended from the spring. What is the displaceme
    10·1 answer
  • Questlon 6 of 10
    13·1 answer
  • In both scientific notation and prefixes we use powers of 10, Can you explain
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!