Mathematics, 01.10.2019 04:00 connorgrabski51
the college board states that the average math sat score is 514 with a standard deviation of 117. colleen gathered data from 50 students in her graduating class and found the average score to be 523. she thinks that her class’s math sat score is different from the average. which of the following are the correct null hypothesis and alternate hypothesis?
a. h0 = 514; ha > 514
b. h0 ≠ 514; ha = 523
c. h0 = 514; ha ≠ 514
d. h0 = 514; ha = 523
Answers: 2
Mathematics, 21.06.2019 13:30, alexthebest3976
Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.
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Mathematics, 21.06.2019 14:30, gujaratif932
Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.
Answers: 1
the college board states that the average math sat score is 514 with a standard deviation of 117. co...
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