A recent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 with a standard deviation of
2 answers:
Response:
Here’s a step-by-step analysis:
Given that Alyssa believes her school is more fashion-forward and that students have spent above $195.00, she gathered information from 20 individuals and discovered the average cost of a prom dress was $208.00.
As she intends to determine if the sample average x bar aligns with the population average mu = 195
(This is a right-tailed hypothesis test)
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The equation representing the circle centered at (-27, 120) that passes through the origin is:
Solution:
The general equation of a circle is expressed as:
Where,
(a, b) denotes the center of the circle
r signifies the radius
Given the center as (-27, 120)
Thus;
a = -27
b = 120
Considering it intersects the origin, meaning (x, y) = (0, 0)
Substituting (a, b) = (-27, 120) and (x, y) = (0, 0) into the equation
Input = 15129 and (a, b) = (-27, 120) into the equation
Hence, the equation characterizing the circle is determined