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Use the results of part (a) to compute the sample mean, variance, and standard deviation for x and for y. (Round your answers to four decimal places.)
The Hill of Tara in Ireland is a place of great archaeological importance. This region has been occupied by people for more than 4,000 years. Geomagnetic surveys detect subsurface anomalies in the earth’s magnetic field. These surveys have led to many significant archaeological discoveries. After collecting data, the next step is to begin a statistical…
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Run a frequency distribution on all variables to ensure that nothing was missed. Include the mean, median, and/or mode, and the standard deviation (see lab from last few weeks for how to do that).
You will input your own data today using the survey your instructor administered and analyzed a few years ago for a study on the relationship between trust and willingness to get the HPV vaccine. STEP ONE: adding the variables Start by opening the blank survey “HPV survey” found on Canvas. Go to question # 89.…
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Explain why a linear programming model would be suitable for this case study.
A food factory is making a beverage for a customer from mixing two different existing products A and B. The compositions of A and B and prices ($/L) are given as follows, Amount (L) in /100 L of A and B Lime Orange Mango Cost ($/L) A 3 6 4 3 B 8 4 6…
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What if a joint started to move in a different direction what would happen?
As we all know joints are defined as a connection between two bones in the skeletal system, joints can be classified by the type of tissue present or by the degree of movement permitted, There are joints or bones that are flexible enough to permit certain bodily movements, however if the skull had bones that…
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Where does most of the energy loss occur in a Venturi meter, and why is this the case?
(a) Where does most of the energy loss occur in a Venturi meter, and why is this the case? (b) A Venturi meter is being calibrated in the laboratory. The meter has a diameter of 75mm at the entrance and 50mm at the throat. The differential head is 1.574m. The flow rate is obtained by…
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Explain the hydraulic difference between a small orifice and a large orifice.
The tank in question 5.4 is covered with an airtight lid and the air space above the water is pressurised so that the flow increases to 0.00093m3 /s. If the other details remain the same, what is the pressure of the air? Question 5.4 (a) Explain the hydraulic difference between a small orifice and a…
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determine the height that the water level in the reservoir must be above the centre of the outlet pipe
A reservoir must discharge to the atmosphere via a short pipeline. The entrance to the pipeline is sharp, and the diameter is 0.3m for the first 10m. The pipeline then expands suddenly to 0.45m diameter for the last 10m. For both pipes l = 0.06. If 0.5m3 /s of water must be discharged from the…
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how long will it take for the two water levels in the tanks to become equal?
Water flows between two adjacent parts of a vertically sided service reservoir through a submerged 0.3m diameter orifice (CD = 0.60) in a common dividing wall. The first reservoir measures 45m by 30m in plan and initially contains water to a height of 5.0m above the centre of the orifice. The second tank is 20m…
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what should be the dimensions and side slopes of the channel to obtain the maximum discharge?
Water flows down a trapezoidal open channel that has a bottom width B of 4.0m and a water surface width BS of 17.2m when the depth of flow on the channel centreline is 3.3m. (a) Without using any charts or tables, calculate the value of the wetted perimeter, the hydraulic radius and the hydraulic mean…
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Explain how it is possible for the flow at a particular cross-section in a channel to occur at two significantly different (alternate) depths of flow at the same discharge.
(a) Explain how it is possible for the flow at a particular cross-section in a channel to occur at two significantly different (alternate) depths of flow at the same discharge. (b) Water flows down a rectangular channel 4.0m wide at a depth of 1.7m. The discharge is 15.0m3 /s. (i) Determine whether the flow is…