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In this post, you will be challenged to look at how statistical tests, such as correlation are commonly used and the possible limitations of such analyses. In addition, you will need to identify the appropriate application of course-specified statistical tests, examine assumptions and limitations of course specified statistical tests, and communicate in writing critiques of statistical tests.
Much has been written about the relationship between students' SAT test scores and their family's income. Generally speaking, there is a strong positive correlation between income and SAT scores. Consider and discuss the following questions as you respond:
What does this correlation tell you?
Is this correlation evidence that having a high family income causes one to have high SAT scores?
Is this correlation evidence that high SAT scores are a cause of higher income? Or, does this tell you something else? Explain your answer.
Explain why correlation alone is rarely sufficient to demonstrate cause.
The bulb contains water vapor originally at a pressure of 13.3Pa. Assuming that every water molecule that enters the appendix condenses on the wall and stays there, find the time required for the pressure to decrease to 1.33 x 10-4 Pa.
Two strings with linear densities of 0.005kg/m are stretched over pulleys, adjusted to have vibrating lengths of 0.50m, and attached to hanging blocks. The block attached to string one has a mass of 20kg and the block attached to string two has a ..
The electron drift speed is 2.3 x 10-4 m/s in a metal with a mean free time between collisions of 6.0 x 10-14s. What is the electric field strength
A force of 21.0 N is required to start a 2.8 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
Grace is playing with her dolls and decides to give them a ride on a merry-go-round. If the doll is13cm from the center of the spinning turntable platform, how fast (in m/s) is the doll moving
As a new electrical technician, you are designing a large solenoid to produce a uniform 0.250Tmagnetic field near its center. What current will you need to produce the necessary field
q1. a plate carries a charge of -3.9 microc while a rod carries a charge of 2.2 microc. how many electrons should be
a 2.00 nC charge is placed on the x-axis at x= -3.00cm, another 2.00nC charge is placed on the x-axis at x=3.00cm, Calculate the electric potential at the origin
What is the current flowing through the 30 Ohm resistor?
A standard 100 Watt (120 Volt) light bulb contains an 8.00 centimeter long tungsten filament. The high-temperature resistivity of tungsten is 9.0 ×107 Ωm. Compute what is the diameter of the filament
A 12 kg weather rocket generates a thrust of 250 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 560 N/m, is anchored to the ground. What is the rocket's speed while the s..
A pile of snow at the crest of a roof with a slope of 40o from the horizontal starts to slide off. find how far out from the base of the building does the snow land
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