The Practice of Statistics for AP - 4th Edition
The Practice of Statistics for AP - 4th Edition
4th Edition
ISBN: 9781429245593
Author: Starnes, Daren S., Yates, Daniel S., Moore, David S.
Publisher: Macmillan Higher Education
bartleby

Videos

Question
Book Icon
Chapter 7.3, Problem 67E
To determine

The correct answer from the options that this sample mean is an unbiased estimator of the mean weight μin the population of all ELBW babies, which means that (a) in all possible samples of size 219 from this population, the mean of the values of x¯will equal 810, (b) in all possible samples of size 219 from this population, the mean of the values of x¯will equal μ , (c) as we rake larger and larger samples from this population, the values of x¯will get closer and closer to μ , (d) in all possible samples of size 219 from this population, the values of x¯ will have a distribution that is close to Normal, (e) the person measuring the children’s weights does so without any systematic error.

Expert Solution & Answer
Check Mark

Answer to Problem 67E

The correct answer is (b).

Explanation of Solution

Given information:

Mean weight, x¯=810grams

Number of students in the random sample = 219

Here, the mean weight is x¯=810and the sample size is n=219

It is known that the unbiased estimator of a mean weight is the sample mean which means, the population mean is equal to the average sample mean over all possible samples of size n.

Thus, in all possible samples of size 219 from this population, the mean of the values of x¯will equal μ .

Hence, the correct answer is (b).

Chapter 7 Solutions

The Practice of Statistics for AP - 4th Edition

Ch. 7.1 - Prob. 3ECh. 7.1 - Prob. 4ECh. 7.1 - Prob. 5ECh. 7.1 - Prob. 6ECh. 7.1 - Prob. 7ECh. 7.1 - Prob. 8ECh. 7.1 - Prob. 9ECh. 7.1 - Prob. 10ECh. 7.1 - Prob. 11ECh. 7.1 - Prob. 12ECh. 7.1 - Prob. 13ECh. 7.1 - Prob. 14ECh. 7.1 - Prob. 15ECh. 7.1 - Prob. 16ECh. 7.1 - Prob. 17ECh. 7.1 - Prob. 18ECh. 7.1 - Prob. 19ECh. 7.1 - Prob. 20ECh. 7.1 - Prob. 21ECh. 7.1 - Prob. 22ECh. 7.1 - Prob. 23ECh. 7.1 - Prob. 24ECh. 7.1 - Prob. 25ECh. 7.1 - Prob. 26ECh. 7.2 - Prob. 1.1CYUCh. 7.2 - Prob. 1.2CYUCh. 7.2 - Prob. 1.3CYUCh. 7.2 - Prob. 1.4CYUCh. 7.2 - Prob. 27ECh. 7.2 - Prob. 28ECh. 7.2 - Prob. 29ECh. 7.2 - Prob. 30ECh. 7.2 - Prob. 31ECh. 7.2 - Prob. 32ECh. 7.2 - Prob. 33ECh. 7.2 - Prob. 34ECh. 7.2 - Prob. 35ECh. 7.2 - Prob. 36ECh. 7.2 - Prob. 37ECh. 7.2 - Prob. 38ECh. 7.2 - Prob. 39ECh. 7.2 - Prob. 40ECh. 7.2 - Prob. 41ECh. 7.2 - Prob. 42ECh. 7.2 - Prob. 43ECh. 7.2 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - Prob. 46ECh. 7.2 - Prob. 47ECh. 7.2 - Prob. 48ECh. 7.3 - Prob. 1.1CYUCh. 7.3 - Prob. 1.2CYUCh. 7.3 - Prob. 1.3CYUCh. 7.3 - Prob. 1.4CYUCh. 7.3 - Prob. 49ECh. 7.3 - Prob. 50ECh. 7.3 - Prob. 51ECh. 7.3 - Prob. 52ECh. 7.3 - Prob. 53ECh. 7.3 - Prob. 54ECh. 7.3 - Prob. 55ECh. 7.3 - Prob. 56ECh. 7.3 - Prob. 57ECh. 7.3 - Prob. 58ECh. 7.3 - Prob. 59ECh. 7.3 - Prob. 60ECh. 7.3 - Prob. 61ECh. 7.3 - Prob. 62ECh. 7.3 - Prob. 63ECh. 7.3 - Prob. 64ECh. 7.3 - Prob. 65ECh. 7.3 - Prob. 66ECh. 7.3 - Prob. 67ECh. 7.3 - Prob. 68ECh. 7.3 - Prob. 69ECh. 7.3 - Prob. 70ECh. 7.3 - Prob. 71ECh. 7.3 - Prob. 72ECh. 7 - Prob. 1CRECh. 7 - Prob. 2CRECh. 7 - Prob. 3CRECh. 7 - Prob. 4CRECh. 7 - Prob. 5CRECh. 7 - Prob. 6CRECh. 7 - Prob. 7CRECh. 7 - Prob. 1PTCh. 7 - Prob. 2PTCh. 7 - Prob. 3PTCh. 7 - Prob. 4PTCh. 7 - Prob. 5PTCh. 7 - Prob. 6PTCh. 7 - Prob. 7PTCh. 7 - Prob. 8PTCh. 7 - Prob. 9PTCh. 7 - Prob. 10PTCh. 7 - Prob. 11PTCh. 7 - Prob. 12PTCh. 7 - Prob. 13PTCh. 7 - Prob. 1PT2Ch. 7 - Prob. 2PT2Ch. 7 - Prob. 3PT2Ch. 7 - Prob. 4PT2Ch. 7 - Prob. 5PT2Ch. 7 - Prob. 6PT2Ch. 7 - Prob. 7PT2Ch. 7 - Prob. 8PT2Ch. 7 - Prob. 9PT2Ch. 7 - Prob. 10PT2Ch. 7 - Prob. 11PT2Ch. 7 - Prob. 12PT2Ch. 7 - Prob. 13PT2Ch. 7 - Prob. 14PT2Ch. 7 - Prob. 15PT2Ch. 7 - Prob. 16PT2Ch. 7 - Prob. 17PT2Ch. 7 - Prob. 18PT2Ch. 7 - Prob. 19PT2Ch. 7 - Prob. 20PT2Ch. 7 - Prob. 21PT2Ch. 7 - Prob. 22PT2Ch. 7 - Prob. 23PT2Ch. 7 - Prob. 24PT2Ch. 7 - Prob. 25PT2
Knowledge Booster
Background pattern image
Statistics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
Hypothesis Testing using Confidence Interval Approach; Author: BUM2413 Applied Statistics UMP;https://www.youtube.com/watch?v=Hq1l3e9pLyY;License: Standard YouTube License, CC-BY
Hypothesis Testing - Difference of Two Means - Student's -Distribution & Normal Distribution; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=UcZwyzwWU7o;License: Standard Youtube License