Answer:
Step-by-step explanation:
Given
Required
Represent as an equation;
Expand the above
<em>Recall that b = $10 ----given</em>
becomes
A randomized study compared two different systems for tracking baggage at an airport. The treatment group using System A reporte
d a mean of 18.5 lost bags per day. The treatment group using System B reported a mean of 16.6 lost bags per day.
To determine if the results are significant, the data are re-randomized and the differences of the means are shown in the dot plot.
What is the best conclusion to make based on the data?
a) The difference of the means is not significant because the re-randomizations show that it is outside the range of what could happen by chance.
b) The difference of the means is significant because the re-randomizations show that it is within the range of what could happen by chance.
c) The difference of the means is significant because the re-randomizations show that it is outside the range of what could happen by chance.
d) The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.
To determine if the results are significant, the data are re-randomized and the differences of the means are shown in the dot plot.
What is the best conclusion to make based on the data?
a) The difference of the means is not significant because the re-randomizations show that it is outside the range of what could happen by chance.
b) The difference of the means is significant because the re-randomizations show that it is within the range of what could happen by chance.
c) The difference of the means is significant because the re-randomizations show that it is outside the range of what could happen by chance.
d) The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.
2 answers:
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Answer:
Step-by-step explanation:
We need to find the equation of parabola using given information
- Vertex: (0,0)
- Open to the left
- Focal width = 12
If parabola open left and passes through origin then equation is
Focal width = 12
Focal width passes through focus and focus is mid point of focal width.
Focus of above parabola would be (-a,0)
Passing point on parabola (-a,6) and (-a,-6)
Now we put passing point into equation and solve for a
a can't be negative.
Therefore, a=3
Focus: (-3,0)
Equation of parabola:
Please see the attachment of parabola.
