Mathematics, 24.06.2019 22:30 kianofou853
An endocrinologist is interested in the effects of depression on the thyroid gland. it is believed that healthy subjects have a mean thyroxin (a hormone related to thyroid function) level of 7.0 micrograms/100 ml and a standard deviation of 1.6 micrograms/100 ml. the endocrinologist wants to assess whether the mean thyroxin level is different for those with depression. she samples 35 subjects with depression and obtains a sample mean of 7.82 micrograms/100 ml for thyroxin. the p value is 0.0124 for testing h0: μ = 7 versus h1: μ ≠ 7. what conclusions should be drawn at p = 0.05?
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Mathematics, 21.06.2019 16:30
An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.
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Mathematics, 21.06.2019 19:00
Write a function for a rotation 90 degrees counter clockwise about the origin, point 0
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Mathematics, 21.06.2019 21:40
The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.
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An endocrinologist is interested in the effects of depression on the thyroid gland. it is believed t...
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