Mathematics, 17.04.2020 03:12 jlozaaaaaa408
A researcher in the field of sports biomechanics believes he has found the "ideal" running posture for sprinters. He selects a random sample of 12 high school track sprinters and records their best 200 m time (in seconds). Then he trains these sprinters over several days to run using his proposed "ideal" posture. In the days after the training ends, these sprinters run several 200 m races, and the researcher records their best performance from this time period. The before-training and after-training times (in seconds) are given below. Use the sign test to test the claim that the proposed ideal running posture is effective (i. e. the median of the "before – after" differences is positive). Use a 0.05 level of significance. Identify the value of the TEST STATISTIC used in a hypothesis test of the claim.
Answers: 2
Mathematics, 21.06.2019 17:50, aaroncx4900
Jace wrote a sentence as an equation. 56 is 14 more than a number. 14+ = 56 which statement best describes jace's work? jace is not correct. the phrase more than suggests using the symbol > and jace did not use that symbol. jace is not correct. he was correct to use addition, but the equation should be 56+ p = 14 jace is not correct. the first number in the sentence is 56, so the equation should start with 56. jace is correct. the phrase more than suggests addition, so jace showed that 14 plus a variable equals 56. o
Answers: 1
Mathematics, 22.06.2019 02:20, kaitlyn0123
Combine like terms to create an equivalent expression. make sure to simplify coefficients and constants as well. -6/5-2/3v+4/15+1/3v
Answers: 2
A researcher in the field of sports biomechanics believes he has found the "ideal" running posture f...
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