Mathematics, 21.11.2019 05:31 joselynrobles
For males the expected pulse rate is 70 per second and the standard deviation is 10 per second. for women the expected pulse rate is 77 per second and the standard deviation is 12 per second. let ! x ¼ the sample average pulse rate for a random sample of 40 men and let ! y ¼ the sample average pulse rate for a random sample of 36 women. what is the approximate distribution of \overline{x}-\overline{y} ? justify your answer.
Answers: 3
Mathematics, 21.06.2019 17:30
Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?
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Mathematics, 21.06.2019 20:00
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
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Mathematics, 21.06.2019 21:30
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Mathematics, 21.06.2019 22:00
You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?
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For males the expected pulse rate is 70 per second and the standard deviation is 10 per second. for...
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