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A pump adds 48000 ft*lb/s to a steady flow rate of 5 ft^3/s . the fluid is water at 60 F. At the entrance to the pump , the diameter of the pipe is 1.5 ft and the elevation is 624.00 ft. At the exit of the pump, the diameter is 1.25 ft and the elevation is 626.00 ft. The temprature of the inflow to the pump is approximately the same as the temperature of the outflow. Determine the pressure difference between the entrance and the exit of the pump.
Illustrated significant negative relationship between amount of homework assigned and student attitudes. Determine the explanatory variable and explain the response variable?
The new independent variable improves the predictive power of the regression model.
a presidential election poll shows one candidate leading with 60 of the vote. if the poll is taken from 200 random
Find the power of the test designed to determine if the the new safety equipment is effective when the mean percent reduction is actually 2.3%. Assume that the population standard deviation is 12% and that α is 0.02. What is the power?
Construct a 95% confidence interval estimate for the proportion of all workers who did not use the Internet within limits. Explain your findings so that your non-quantitative partner will understand them.
To compare the effectiveness of three types of pain relievers, a homogeneous group of 22 students were divided randomly into three groups, and each group took one of three pain relievers for a period of 2 weeks.
If the oven gets hotter than 475 degrees F, the core is defective. What is the probability that the oven will cause a core to be defective?
The population of IQ scores forms a normal distribution with a mean of µ = 100 and a standard deviation of o = 15. What is the probability of obtaining a sample mean greater than M = 105.
A woman has a collection of snakes and iguanas. Her young son observed that the reptiles have a total of 50 eyes and 56 feet. How many reptiles of each type does the woman have?
In how many different ways can 5 songs be arranged if a particular song must be the first on the EP?
A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share?
question 1 a 2009 national poll of 1053 u.s. adults found that 548 favored the governments plan for a stimulus
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