Confidence interval for average age of population
A random sample of 16 CSN students is taken. The average age in the sample was 27 years with a standard deviation of 4 years. Construct and interpret a 95 % confidence interval for the average age of the population.
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A uniform solid sphere is rolling without slipping along a horizontal surface with a speed of 5.50 m/s when it starts up a ramp that makes an angle of 25.0 degrees with the horizontal. What is the speed of the sphere after it has rolled 3.00 m up
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