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A horizontal pipe is 100 m long with a diameter of 0.6 m. the pipe carries a steady flow of water of 0.5 m^3/s. the gage pressure at the upstream end of the pipe is 200 kPa. the gage pressure at the downstream end of the pipe is 160 kPa. Determine the viscous force exerted by the pipe on the fluid and the average shear stress on the inside surface of the pipe. Assume that uniform flow exists in the pipe.
For the following situation, assume the random variable is normally distributed and use a normal distribution or a t-distribution to construct a 90% confidence interval for the population mean. If convenient, use technology to construct the confid..
a company that bakes chocolate chip cookies averages 5.2 chocolate chips per cookie. assume that the number of
a test has a mean of 104 and a standard deviation of 16. we want to be 98 certain that we are within 4 points of the
a manufacturing of window frames knows from long experience that 5 percent of the production will have some type of
Can you conclude that u1 is not equal to u2 at alpha=.05? State the hypothesis in orders of 1-2. construct a 99% confidence interval for the difference in true means. State the confidence interval in terms of 2-1.
A bag contains 8 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
Overall, the students' class attendance days (per year academic) is normally distributed around 180 days with a standard deviation of 15 days. What's the probability that the mean number of attendance days will be between 190 and 200?
Let independent variable x represent years since 1950. Determine quadratic regression model for per capita cigarette consumption.
for the xy data below computea r and determine if it is significantly different from zero.b the slope of the regression
Find the product of the vector of state probabilities for the preceding period and the matrix of transition probabilities.
What is the probability of drawing two diamonds after discarding 5 and 7.
Dunn Poitiac has compiled the following sales data regarding the number of cars sold over the past 60n selling days. Answer the following questions for the sales data shown.
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