Mathematics, 21.11.2019 06:31 dylanolmeda9
Suppose the average math sat score for all students taking the exam this year is 480 with standard deviation 100. assume the distribution of scores is normal. a srs of four students is selected and given special training to prepare for the math sat. the mean math sat score of these students is found to be 560, 80 points higher than the national average. we may correctly concludea. the results are neither statistically significant at level = 0.05 nor practically significant.
b. the results are not statistically significant at level = 0.05, but they are practically significant.
c. the results are statistically significant at level = 0.05, but they are not practically significant.
Answers: 2
Mathematics, 21.06.2019 16:30
If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?
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Mathematics, 21.06.2019 19:00
15 points! write the slope-intercept form of the equation of the line through the given point with the given slope. use y-y = m(x-x) to solve. through (2,5) slope= undefined
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Mathematics, 21.06.2019 19:00
John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11
Answers: 2
Suppose the average math sat score for all students taking the exam this year is 480 with standard d...
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