User Account

All Pages

How large a sample is needed to estimate

Assignment Help Basic Statistics
Reference no: EM131913057

Hemoglobin levels in 11-year-old boys vary according to a normal distribution with σ=1.2 g/dL.

a) How large a sample is needed to estimate µ with 95% confidence, so the margin of error is no greater than 0.5 g/dL?

b) How large a sample is needed to estimate µ with margin of error 0.5 g/dL with 99% confidence?

Reference no: EM131913057

Questions Cloud

What is cassies depreciation on the machine : What is Cassie's depreciation on the machine in 2016? How does your answer change, if at all, if Cassie acquired the machine in November 2016?
Hopes of improving the score : The number of students taking the SAT has risen to an all-time high of more than 1.5 million (College Board, August 26, 2008).
What is the amount that james white will receive on the sale : You may use your financial calculator or excel for calculation. What is the amount that James White will receive on the sale of the note to Dedham Savings Bank?
Describe a statistical situation : The data, the statistic, and the parameter are all values used to describe a statistical situation. How does one distinguish among these three terms?
How large a sample is needed to estimate : How large a sample is needed to estimate µ with 95% confidence, so the margin of error is no greater than 0.5 g/dL?
Calculate the impact on net income for given years : In May 20×5, the newly appointed controller of Butch Baking Corporation conducted. Calculate the impact on Net Income (after taxes) for years, 20X2 and 20X3.
Identify current strengths and weaknesses of organization : Once you have identified the current strengths and weaknesses of your organization (United Service Organization) as it relates to fundraising.
What is the probability that both are smokers : A male student and a female student from the college are randomly selected for a survey. What is the probability that both are smokers?
Record entry to close dividend account to retained earnings : July 14-Record the entry on the date of payment for the cash dividend. July 31-Record the entry to close the dividend account to retained earnings.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Relationship between confidence intervals

Can you give a general rule as to what happens with confidence intervals as a function of sample sizes and confidence levels? What are the trade-offs?

  Goals and policies of nineteenth-century liberals

Contrast the goals and policies of Nineteenth-century liberals and conservatives. Conclude by remarking on the repressive methods used by regimes.

  What type of bias is being described

The second criticism was that the sample was selected only from a group that was induced to participate by the offer of free Internet service, yet the results were generalized to all U.S. adults. For each criticism, indicate what type of bias is b..

  At the 001 significance level test the claim that a

vertical banded gastroplasty is a surgical procedure that reduces the volume of the stomach in order to produce weight

  Operation-technology and management plan

Create an operations plan for your NAB company using the template in the text as a guide (p. 214 |Operations Plan Preparation Form ). Extract appropriate information from the NAB Company portfolio, where applicable. Other required items in the tem..

  Perform a chi-square test for goodness of fit using data

Explain carefully why it would not be appropriate to perform a chi-square test for goodness of fit using these data.

  The employees of a firm that does asbestos cleanup are

the employees of a firm that does asbestos cleanup are being tested for indications of asbestos in their lungs. the

  Which gender baby would you pick

The article "Boy or Girl: Which Gender Baby Would You Pick?" (LiveScience, March 23, 2005, www.livescience .com) summarized the findings

  Compute the proportion of all new pennies

The weight of many manufactured items is approximately normally distributed. For new U.S. pennies, the mean is 3.11 grams and the standard deviation is 0.05.

  Measurements from a population having population median

Suppose we have a random sample of n = 45 measurements from a population having population median M. The research design calls for a 95% confidence interval on M. a. Use Table 4 in the Appendix to obtain La2 and Ua2.

  Find the sum of the weights of all the remaining pieces

More generally, suppose that there is one "you lose" piece of paper, with "weight" v, and there are n blank pieces of paper, each with "weight" w.

  Study of sampling methods-central limit theorem

The area of study is Sampling Methods and the Central Limit Theorem. Consider the digits in the phone numbers on a randomly selected page of your local phone book a population.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd