A police officer is concerned about speeds on a certain section of interstate 95. the data accompanying this excersise show the
speeds of 40 cars on a saturday afternoon. The speed limit on this portioin of interstate 95 is 66 mph. Specify the competing hypotheses in order to determind if the average speed is greater than the speed limit. calculate the value of the test statistic
1 answer:
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Answer:
A cardioid
Step-by-step explanation:
A cardioid is a curve in the shape of a heart traced by a point on the circumference of a circle as it rolls around a fixed circle of the same radius.
The equation of vertical cardioid is ±
Given the polar curve is
4
This is an equation of vertical cardioid.
So, it represents a cardioid.
