A plant in the manufacturing sector is concerned about its sulfur dioxide emissions. The weekly sulfur dioxide emissions follow a normal distribution with a mean of 1000 ppm (parts per million) and a standard deviation of 25. Recently, a “cleaner” technology has been adopted. In such a scenario, the CEO would like to investigate whether there has been a significant change in the emissions and has hired you for advice. In other words, the CEO wants to know if the mean level of emissions is different from 1000 at the 1% level of significance. Next, suppose that you are given a sample of data on weekly sulfur dioxide emissions for that plant. The sample size is 50 and x = 1008 ppm. What is the value of the test statistic
Solution :
Test statistic =
= (
-
) / s /
n
= (1008 - 1000) / 25 /
50
= 2.263
Test statistic = 2.263
A plant in the manufacturing sector is concerned about its sulfur dioxide emissions. The weekly sulfur...
West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TQM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 5050 hours, about 10% longer than competitors' models. To raise the lifetime above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough...
West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TOM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 60 hours, about 10% longer than competitors' models. To raise the time above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough to...
I have an Assignment of Marketing Research on Climate Change. Where i have to take an interview of an industry professional, which is done. I have all answer what he said, now i just need to analysis all answer into sub category which are as follow: - 1. Level of Concern of Professionals 2. Impacts on Industry 3. Awareness of Millennials' Knowledge 4. Attitudes Among Millennials If you think any other category could be included please add it. i have...
I need Summary of this Paper i dont need long summary i need
What methodology they used , what is the purpose of this paper and
some conclusions and contributes of this paper. I need this for my
Finishing Project so i need this ASAP please ( IN 1-2-3 HOURS
PLEASE !!!)
SPECIAL ARTICLES tole of Monetary Policy C Rangarajan What should be the objectives of monetary policy? Does the objective of price stability conflict with the goal of achieving...
Industrial-organizational psychologists are interested in all of the following except1. how to best diagnose clinical disorders and offer therapy to employees.2. how personality characteristics influence work behavior.3. how culture influences people's perceptions of their working environments.4. how people's work affects their home life.An organizational psychologist would be most likely concerned with1. studying the interaction between humans and technology.2. All of the these3. interviewing potential employees.4. helping people organize their schedules and daily planners.5. understanding the emotional and motivational side of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...