The inside diameter of a randomly selected piston ring is a random variable with mean value 12
Question:
The inside diameter of a randomly selected piston ring is a random variable with mean value 12 cm and standard deviation .04 cm.
a. If X is the sample mean diameter for a random sample of n 16 rings, where is the sampling distribution of X centered, and what is the standard deviation of the X distribution?
b. Answer the questions posed in part
(a) for a sample size of n 64 rings.
c. For which of the two random samples, the one of part
(a) or the one of part (b), is X more likely to be within
.01 cm of 12 cm? Explain your reasoning.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answered By
Danish Sohail
My objective is to become most reliable expert for clients. For last 10 years I have been associated with the field of accounting and finance. My aim is to strive for best results and pay particular attention to client needs. I am always enthusiastic to help clients for issues and concerns related to business studies. I can work on analysis of the financial statements, calculate different ratios and analysis of ratios. I can critically evaluate stock prices based on the financial analysis and valuation for companies using financial statements of the business entity being valued with use of excel tools. I have expertise to provide effective and reliable help for projects in corporate finance, equity investments, financial accounting, cost accounting, financial planning, business plans, marketing plans, performance measurement, budgeting, economic research, risk assessment, risk management, derivatives, fixed income investments, taxation, auditing, and financial performance analysis.
78+ Reviews
112+ Question Solved
Related Book For 
Probability And Statistics For Engineering And The Sciences
ISBN: 9781111802325
7th Edition
Authors: Dave Ellis, Jay L Devore
Question Posted:
