(Answered) The epa needs to estimate the average number of iron

Academics

The EPA needs to estimate the average number of iron particles in ppm from our drinking water. They are required to make a 99% confidence interval that has a margin of error no more than 0.37. From nearby water sources they have reason to believe the standard deviation is 2.3.

What is the z-score they will need for their confidence interval?

View complete question

History, Academics

Category:- History
Reference No.:- M92767990
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in History

What are the effects of changes in aggregate demand ad

What are the effects of changes in Aggregate Demand (AD) according to Keynesian Economic Theory? What is the role of the government in Keynesian economic theory? How does it differ from Classical and Neoclassical Economi ...

The tobacco industry is a prime example to consider when

The tobacco industry is a prime example to consider when talking about price elasticity of demand. While nicotine use can be addictive for many users, it is not addictive for the so-called "social smokers". What can we s ...

Choose one of the five topics to write aboutcompose a two

Choose one of the five topics to write about. Compose a two (2)-page essay in which you will take a first-person perspective of the situation, describe the debate in your own words, and provide a justified and academical ...

Requirements-you must choose one oral history from pages 7

Requirements -You must choose one oral history from pages 7 to 38 in Speaking History and the other from pages 39 to 52 in Speaking History. -Then write a paper that summarizes, compares and contrasts, and reflects on th ...

Answer the following question compare and contrast the

Answer the following Question : Compare and contrast the military and political structure of the Hittites and the Assyrians. What were the strengths and weaknesses of each? What caused their collapse?

Research paper instructionsyou will be required to write a

RESEARCH PAPER: INSTRUCTIONS You will be required to write a 1,000-word evaluation of your personal cultural intelligence in current Turabian format. You must support your assertions with a minimum of 1 textbook resource ...

Robert e lee documentary by navarro michellenow that we

Robert E Lee Documentary by Navarro, Michelle Now that we have reached the end of the semester, what are some things you learned about the video Robert E. Lee? Please focus on at least three things that caught your inter ...

Question explain how social movements affect democracy and

Question : Explain how social movements affect democracy, and how women's movement and the civil rights movement have affected democracy. (Use outside sources plus textbook: please remember to cite sources) 260 words

Discussion pda questionplease readview and compare these

Discussion PDA QUESTION Please read/view and compare these conflicting and competing accounts and depictions of the Boston Massacre. Answer the following three (3) questions in an essay a MINIMUM length of Two (2) FULL P ...

Would a shortened workday help improve productivity and

Would a shortened workday help improve productivity and decrease worker stress level?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask History Expert