courtney3652
24.06.2019 •
Mathematics
The trend of thinner miss america winners has generated charges that the contest encourages unhealthy diet habits among young women. listed below are body mass indexes (bmi) for recent miss america winners. use a 0.01 significance level to test the claim that recent miss america winners are from a population with a mean bmi less than 20.16, which was the bmi for winners from the 1920's and 1930's assume the sample is from an approximately normal distribution.do recent winners appear to be significantly different from those in the 1920's and 1930's? 19.5 20.3 19.6 20.2 17.8 17.9 19.1 18.8 17.6 16.8expert answer
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Ответ:
The system has not solutions, because the equations represent parallel lines. This is, they have the same slope (the hourly rate) but different starting point or y-intercept (the fee). So the costs will never be equal.