Answer:
The 80% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 23
The sample mean is ![\= x = 0.036 \ cc/m^3](https://tex.z-dn.net/?f=%5C%3D%20x%20%3D%200.036%20%5C%20cc%2Fm%5E3)
The standard deviation is ![\sigma = 0.012](https://tex.z-dn.net/?f=%5Csigma%20%20%3D%200.012)
From the question we are told the confidence level is 80% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the margin of error is mathematically represented as
=>
Generally 80% confidence interval is mathematically represented as
=>
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Your answer is 3/16 I think this is accurate for the problem
4.440 minutes of the ride is spent higher than 37 meters above the ground.
<h3>How to find the time spent on the ride?</h3>
We have to find the amount of time spent by the ride 37 meters above the ground.
We know that 37 meters above the ground is actually one meter above the center.
We can find the angle above the center as shown below:
arcsin(1/34) = 0.0294 radians
Now we have to find the angle of rotation:
The angle of rotation of the Ferris wheel above 37 meters = π - (2*0.0294)
= 3.1 radians
The angular velocity of the Ferris wheel = Angle covered/Time
= 2π/9 rad/min.
Therefore time spent above 37 meters = 3.1*9/2π
= 3.1*9/6.28319
= 4.440 minutes
Therefore, we have found that 4.440 minutes of the ride is spent higher than 37 meters above the ground.
Learn more about the angle of rotation here: brainly.com/question/2078551
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R+3>7
-3 -3
r>4
just write it right I couldn't find the same sign