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Test scores were recorded for students in a statistics class. The test scores for the first test had a standard deviation of 3.8 points. The scores from the second test had a standard deviation of 4.8 points. Choose the correct statement below.
The average test grade rose by one point, the scores of the second test were closer together than the first, the higher standard deviation of the second test indicates higher average scores on the second test than the first, or none of the above are true.
The times were approximately Normal and the standard deviation of all such corrections was known to be 1.3 days. What is the rejection point at α = 0.001 to testHo:μ=8vs. Ha:μ>8?
find the distance between A and B
How many times more energy is released by a magnitude 6 earthquake than by a magnitude 2 earthquake?When you are 2 meters away from the speakers at a concert, the sound level is 130 db. How far away should you sit to reduce the level to 110 dB?
Here y1, y2, y3 are nonnegative integers that satisfy y1 + y2 + y3 = n.(a) Show that Y1 follows Binomial(n, p1) by showing that
Out of 30 job applicants, 11 are female, 17 are college graduates, 7 are bilingual, 3 are female college graduates, 2 are bilingual woman, 6 are bilingual college graduates, and 2 are bilingual female college graduates.
two minor league baseball players got a total of 378 hits. washington had 16 more hits than sanchez. find the number of hits for each player.
at the age of 30 you decide to start saving money. at first you can only afford to deposit 200 per month. however at
Find the value of theta that maximizes g(theta) and find the maximum value. Write the directional derivative at P as a function of theta; call this function g(theta).
Determine the steady-state probabilities for this transition matrix algebraically and explain what they mean.
What is the maximum profit if each item is sold for 10 dollars? (Assume you sell everything you produce.)
Add-on software B takes the programmer 10 hours, the graphic artist 4 hours, and the mathematician 2 hours.
a garden shop wishes to prepare a supply of special fertilizer at a minimal cost by mixing two fertilizers a and b. the
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