Correct null and alternative hypothesis for testing
Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 85 hours.
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0.300 L of H2 gas collected over water at27oC on a day when the atmospheric pressure was 745torr. What would be the volume of H2 gas at 760 torr after the water vapor was removed? (P H2O = 27 torr at27oC)
Three 4.0-uF capacitors are connected in parallel across the terminals of a 60.0-Hz generator. What is the capacitive reactance of the circuit?
A horizontal spring is lying on a frictionless surface. One end of the spring is attached to a wall whle the other end is connected to a movable object.
Find the standard normal curve area that lies:
The system is extremely clean and quiet, and the flow stays laminar until a noisy air compressor is turned on in the laboratory. Then it suddenly goes turbulent. Calculate the ratio of turbulent to laminar heat transfer coefficients.
What are the velocities of the two people after the snowball is exchanged? Disregard friction between the skates and the ice.
Describe what a type I and type II error would be for each of the following null hypotheses:
During the past six months, 73.2% of US households purchased sugar. Assume that these expenditures are approximately normally distributed with a mean of $8.22 and a standard deviation of $1.10.
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Why does victor coin the term hyper-violence instead of just using violence? And second, how is hyper-violence display in the Oakland community?
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