Directions: Use the seven-step method to solve the following. Write your answer on a separate sheet of paper.1. An experimental study was conducted by a researcher to determine if a new time slot has an effect on the performanceof pupils in mathematics. Fifteen randomly selected learners participated in the study. Toward the end of theinvestigation, a standardized assessment was conducted. The sample mean was 85 and the sample standarddeviation is 3. In the standardization of the test, the mean was 75 and the standard deviation was 10. Based on theevidence at hand, is the new time slot effective? Use 0.05 level of significance

Answered: Image /qna-images/answer/7dac63e0-0a36-42af-8f6e-98f2293f166f.jpg

Answered: 1. An experimental study was conducted…

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

In a normally distributed data set a mean of 55 where 95% of the data fall between 47.4 and 62.6, what would be the standard deviation of that data set?
A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height converts to the z score 2.66. How many standard deviations in his height above the mean
The mean composite score for seniors who took the SAT in 2010 was 1068. If the standard deviation for the same year was 100, what would the z score be for a person who scored in the 98th percentile? a. +2.00 b. -1.00 c. +1.00 d. -2.00
On a verbal skill test, the mean was 72 and the standard deviation was 7. If John scored 75, what was his z-score?
Lecture(10.9A): The Peabody Picture Vocabulary Test has a standard score population mean of 100 and a standard deviation of 15. You tested a class of Grade 2 students wondering if their scores are different from the population. After testing these hypothesis you grouped the children based on whether the oldest, middle, or youngest. Here is a summary of the grouped data. Oldest child: 87 ,84, 98, 104, 106, 91,96, 92, Middle child: 65, 74, 62, 60, 73, 64, 71,78 Youngest child: 115, 84, 85, 83, 95, 94, 108, 102, 89 Perform AVOVA post Ad Hoc (Bonfeirri correction) in Excell.
A population has a Mean of 100 and a standard deviation of 15. A sample of 20 college students is measured and the Sample mean is 125. What is the standard error? Show the math.
You are provided with a mean of 28.18 with a standard deviation of 4.33. What percent of students had a score between the mean and 26.25?
The local pilots association examined records from this year's census of its members. Tom is a member, and the census shows that he has 4210 hours of flight experience. The census also shows that among all members of the association the mean flight experience is 3095 hours with a standard deviation of 679 hours. Find the z-score of Tom's flight experience relative to the flight experiences of all the members of the pilots association. Round your answer to two decimal places.
You are a teacher at a gifted school, and you feel that the newest class of students is even brighter than usual. The mean IQ at your school is 127, and the mean IQ of this new class is 134. In total, there are 32 students in this new class. Also, the standard deviation of the school’s IQ is 8. Use the eight steps to test whether this new class of students is significantly more intelligent than the school’s student body overall.
According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?
Carla scored a 31 on her ACT and an 750 on her SAT. If the mean and standard deviation for the ACT are 18 and 7, respectively; and the mean and standard deviation of the SAT are 500 and 150, respectively - what is her percentile rank on each exam? Percentile rank of ACT Percentile rank of SAT On which exam did she do better?
According to the College Board, scores on the math section of the SAT Reasoning college entrance test for the class of 2010 had a mean of 516 and a standard deviation of 116. Assume that they are roughly normal.One of the quartiles of the scores from the math section of the SAT Reasoning test is 438. The other quartile is _______.

SEE MORE QUESTIONS

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