5 6 6 8 9 7 810 910The mean of this population of numbers is u = 7.8, and the standard deviation is o = 1.66.Suppose you take a sample of four of these 10 nursing students. The following are the number of days it took the four students to heal from theirwounds during their exam period.910910The mean of this sample of numbers is M =and the standard deviation is s = 0.58.Suppose you take a sample of eight of the 10 nursing students. The following are the number of days it took the eight students to heal from theirwounds during their exam period.6 6 8 9 7 81010The mean of this sample of numbers is M =and the standard deviation is s = 1.60.Calculate the standard error of the mean for the sample of four: ƠM =Calculate the standard error of the mean for the sample of eight: OMThe sample ofis a better estimate of the population. Surgical wounds heal more slowly in people who are stressed. Ten nursing students were given puncture wounds during their exam period and duringsummer vacation. Their rate of healing was much slower when they received wounds during their exam period.The following are the number of days it took the 10 nursing students to heal from their wounds during their exam period.56 6897 810910The mean of this population of numbers is µ = 7.8, and the standard deviation is o = 1.66.Suppose you take a sample of four of these 10 nursing students. The following are the number of days it took the four students to heal from theirwounds during their exam period.9.1010The mean of this sample of numbers is M =and the standard deviation is s = 0.58.Suppose you take a sample of eight of the 10 nursing students. The following are the number of days it took the eight students to heal from theirwounds during their exam period.6 6 8 9 7 81010The mean of this sample of numbers is M =and the standard deviation is s = 1.60.

Given that Data : 5 6 6 8 9 7 8 10 9 10 We have to find Sample Mean and Sample standard…

Answered: Surgical wounds heal more slowly in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on a scale from 1 to 36. The distribution of ACT scores is approximately Normal, with mean of 21.2 and standard deviation of 5.2, SAT scores are reported on a scale from 400 to 1600. The distribution of SAT scores is approximately Normal, with mean of 1,159 and standard deviation of 205. What ACT scores make up the top 10% of all the scores? Round to the nearest whole number. 80 888 #3 $ & 3 4. 7 E Y U F G H J K DI
Cherise is interested in how her friends compare to the population for number of hours of television watched during a single week. She collects the data from 9 of her friends. The average for her friends is 28 hours, with a standard deviation of 9. She knows that the population mean is 34. What is the t statistic?
We considered the differences between the temperature readings in January 1 of 1968 and 2008 at 51 locations in the continental US in Exercise 5.19. The mean and standard deviation of the reported differences are 1.1 degrees and 4.9 degrees respectively. see attachment
There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on a scale from 1 to 36. The distribution of ACT scores is approximately Normal, with mean of 21.9 and standard deviation of 5.8. SAT scores are reported on a scale from 400 to 1600. The distribution of SAT scores is approximately Normal, with mean of 1,059 and standard deviation of 203. What ACT scores make up the top 10% of all the scores? Round to the nearest whole number.
A test was designed to have a mean of 80 and a standard deviation of 10. A random sample of 20 students at your school take the test, and the mean score turns out to be 85. Does this score differ significantly from 80? To answer this problem, you may want to use the Normal Distribution Calculator.
The accounting department at Weston Materials Incorporated, a national manufacturer of unattached garages, reports that it takes two construction workers a mean of 32 hours and a standard deviation of 2 hours to erect the Red Barn model. Assume the assembly times follow the normal distribution .a-1. Determine the z-values for 29 and 34 hours. (A negative amount should be indicated by a minus sign. Round z-value to 2 decimal places and your final answer to 2 decimal places.) a-2. What percent of the garages take between 32 hours and 34 hours to erect? (Round z-value to 2 decimal places and your final answer to 2 decimal places.) b. What percent of the garages take between 29 hours and 34 hours to erect? (Round z-value to 2 decimal places and your final answer to 2 decimal places.) c. What percent of the garages take 28.7 hours or less to erect? (Round z-value to 2 decimal places and your final answer to 2 decimal places.) d. Of the garages, 5% take how many hours or more to erect?…
For a certain type of job, it costs a copany an average of $231 to train an employee to perform the task. The standard deviation is $5. Find the minimum percentage of data values that will fall in the range of $219 to $243. Use Chebyshev's theorem.
A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. c. What proportion of people scored in the A range (90 or above)?d. What proportion of people failed the exam (60 or below)?
The mean score for first exam in your first organic chemistry class (section A) was 60, with a standard deviation of 5. Your score on the exam was 70. A. How many standard deviations above the mean is your score?
There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on a scale from 1 to 36. The distribution of ACT scores is approximately Normal with mean = 21.5 and standard deviation = 5.4. SAT Scores are reported on a scale from 600 to 2400. The distribution of SAT scores is approximately Normal with mean = 1498 and standard deviation = 316. (b) Joshua scores 17 on the ACT. Anthony scores 1030 on the SAT. Assuming both tests measure the same thing, who has the higher score? Report both z-scores. (c) What is the purpose of finding the z-scores for both the ACT and SAT scores?
Raul received a score of 79 on a history test for which the class mean was 70 with a standard deviation of 7. He received a score of 79 on a biology test for which the class mean was 70 with standard deviation 9. On which test did he do better relative to the rest of the class? A. biology test B. history test C. the same

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS