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vredina [299]
3 years ago
6

3. What methods are you using to test this (or each) hypothesis?. ​

Physics
2 answers:
Gnoma [55]3 years ago
4 0

Answer:

my method is guessing it works 50% of the time :)

Explanation:

Monica [59]3 years ago
4 0

Traditional Method->>>>I'm not 100% sure of my answer but gl buddy

Step 1 Identify the Null Hypothesis and the Alternative Hypothesis

Step 2 Identify α (Level of Significance)

Step 3 Find the critical value(s)

Step 4 Find the test statistic

 For a Proportion: Hand calculation

TI 83/84 – Use 1PropZTest (See Handout H-404)

 For a population mean (with α known):

TI 83/84 - Use Z-Test (See Handout H 404)

 For a population mean (with α Not known):

TI 83/84 - Use T-Test (See Handout H-404)

Step 5 Draw a graph and label the test statistic and critical value(s)

Step 6 Make a decision to reject or fail to reject the null hypothesis

 Reject - The test statistic falls within the critical region.

 Fail to Reject - Test statistic does not fall within the critical

region.

P-Value Method:

<em>P-value is the area determined as follows:</em>

<em> Left Tail Test: p-value is the area to the left of the test statistic.</em>

<em> Right Tail Test: p-value is the area to the right of the test statistic.</em>

<em> Two Tailed Test: p-value is twice the area bounded by the test statistic</em>

<em>Make a decision to reject or fail to reject the null hypothesis:</em>

<em> Reject if p-value ≤ α</em>

<em> Fail to reject if p-value > α</em>

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Answer: 0

Explanation: Initial velocity is 0.

7 0
3 years ago
if an object is moving at a constant speed in a changing direction, What is the acceleration of the object (zero or not zero)​
Andreas93 [3]
  • We know, acceleration is the change of velocity by time.
  • Velocity is the speed of an object which also indicates the direction.
  • Hence, acceleration is both dependant upon the speed as well as the direction.
  • So, if an object is moving at a constant speed in a changing direction, the acceleration will also change. It will not be zero.
  • An example is that of uniform circular motion.

Answer:

if an object is moving at a constant speed in a changing direction, the acceleration of the object will not be zero.

4 0
2 years ago
An underwater scuba diver sees the Sun at an apparent angle of 43.0° above the horizontal. What is the actual elevation angle of
Inessa05 [86]

Answer:

The actual elevation angle is 12.87 degrees

Explanation:

In the attachment you can clearly see the situation. The angle of elevation as seen for the scuba diver is shown in magenta, we conclude that \theta_2=90-43=47.

Using Snell's Law we can write:

n_1\sin(\theta_1)=n_2\sin(\theta_2)

\implies \sin(\theta_1)=\frac{n_2}{n_1}\sin(\theta_2),

Let's approximate the index of refraction of the air (medium 1 in the picture) to 1.

We thus have:

\sin(\theta_1)=n_2\sin(\theta_2)=1.333\sin(47)

\implies\theta_1=\arcsin[n_2\sin(\theta_2)]=\arcsin[1.333\sin(47)]\approx 77.13. Calling \alpha the actual angle of elevation, we get from the picture that \alpha=90-77.13=12.97

7 0
3 years ago
When the mallet hits the ball with an action force, the ball exerts a reaction 1 force on the mallet as explained by: 1) Newton'
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Explanation: lmk if I’m wrong

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2 years ago
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I hope this helped xx
8 0
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