Discuss the stability of the amount of dissolved oxygen

Assignment Help Basic Statistics

Reference no: EM131384696

The level of dissolved oxygen in water was measured every 2 hours in a river where industrial plants discharge processed waste. Each observation consists of four samples, from which the sample mean and range of the amount of dissolved oxygen in parts per million are calculated. Given Table shows the results of 25 such observations.

Discuss the stability of the amount of dissolved oxygen. Revise the control limits, if necessary, assuming special causes for the out-of-control points. Suppose that environmental standards call for a minimum of 4 ppm of dissolved oxygen. Are these standards being achieved? Discuss.

67_Table 07.jpg

Reference no: EM131384696

Questions Cloud

Estimate the process mean and standard deviation : Calculate the centerline and control limits for the X‾- and s-charts.- Estimate the process mean and standard deviation, assuming the process to be in control.

Identify strategies to control and monitor event : Given the following list of end-user policy violations and security breaches, select three breaches and identify strategies to control and monitor each event to mitigate risk and minimize exposure

Explain based on the afore-mentioned research finding : Explain, based on the afore-mentioned research finding, why and how ‘gender' may affect the results of the study if Xavier would not control for gender?

Can leaders really motivate employees : Can leaders really motivate employees? If so, how and for how long? Is there a way to create and sustain a motivating environment that will also help retain talent? What is it? How does it work?

Discuss the stability of the amount of dissolved oxygen : Discuss the stability of the amount of dissolved oxygen. Revise the control limits, if necessary, assuming special causes for the out-of-control points.

Construct chart for moving range of successive observations : The observations from 20 such samples are shown in given Table. Construct a chart for the moving range of two successive observations and a chart for individuals.

What steps did petrobras take to transform itself : What steps did Petrobras take to transform itself? What evidence can you find to show how Gabrielli set the vision for this effort? Why is that important?

Demonstrate the process of creating an outline prior : Demonstrate the process of creating an outline prior to creating a draft of an academic paper. Synthesis of the previous research on good decisions that results in a general definition of good decision making.

Write algorithm to calculate total expences : Write algorithm to calculate total expences

User Account

All Pages