Calculate the sample size
There is 95% confidence that the sample mean serum cholesterol level of a group of 20 to 74 year old males in the United States is within 13 units of the population mean (µ) and a standard deviation (?) of 46 mg/100 ml. Calculate the sample size.
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An object is 17 cm in front of a diverging lens that has a focal length of -11 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 1.5?
The mean diastolic blood pressure of 100 individuals is 73 mmHg with a standard deviation (s) of 11.6 mmHg. Calculate the 99% confidence interval for the µ.
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The mean weight of 100 men from the Honolulu Heart Study is 64 kg with a standard deviation (s) of 8.61 kg. Calculate the 99% confidence interval of the µ.
There is 95% confidence that the sample mean serum cholesterol level of a group of 20 to 74 year old males in the United States is within 13 units of the population mean (µ) and a standard deviation (?) of 46 mg/100 ml. Calculate the sample
A 5.00-kg steel ball is dropped onto a copper plate from a height of 10.0 m. If the ball leaves a dent 3.20 mm deep, what is the average force exerted by the plate on the ball during the impact?
The Program Director of an undergraduate program Health Sciences in a New England university is planning a tour for a group of students and their parents. The standard deviation (?) from the previous years' tours is 40 minutes. How many tour recor
A 45.0 hollow copper cylinder is 90.0 long and has an inner diameter of 1.0 cm. The current density along the length of the cylinder is 1.50×105 . What is the current in the cylinder?
Determine the maximum deflection in each spring needed to stop the motion of the ingot. Take kA = 5kN/m, kB = 3 kN/m.
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