Construct a 95% confidence interval for the difference between the average math scores of students majoring in engineering

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

QUESTIONS (15 marks)

Do SAT scores for high school students differ depending on the students’ intended field of study? Fifteen students who intended to major in engineering were compared with 15 students who intended to major in language and literature. Given in the accompanying table are the means and standard deviations of the scores on the verbal and mathematics portion of the SAT for the two groups of students

 

	VERBAL		MATH
Engineering (n = 15)	y¯ = 446	s = 42	y¯ = 548	s = 57
Language/Literature (n = 15)	y¯ = 534	s = 45	y¯ = 517	s = 52

 

The questions follow on page 2. Probability tables are provided at the back of the test. 

1. Construct a 95% confidence interval for the difference between the average math scores of students majoring in engineering and those majoring in language/literature. Would you say there is a differ- ence between the average math scores of students majoring in engineering and of those majoring in language/literature? Explain. (8 marks)

2. Construct a 95% confidence interval for the standard deviation of math scores of students majoring in engineering. Interpret. (7 marks)

 

Attachments:

Related Questions

. The fundamental operations of create, read, update, and delete (CRUD) in either Python or Java

CS 340 Milestone One Guidelines and Rubric  Overview: For this assignment, you will implement the fundamental operations of create, read, update,

. Develop a program to emulate a purchase transaction at a retail store. This  program will have two classes, a LineItem class and a Transaction class

Retail Transaction Programming Project  Project Requirements:  Develop a program to emulate a purchase transaction at a retail store. This

. The following program contains five errors. Identify the errors and fix them

7COM1028   Secure Systems Programming   Referral Coursework: Secure

. Accepts the following from a user: Item Name Item Quantity Item Price Allows the user to create a file to store the sales receipt contents

Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip

. The final project will encompass developing a web service using a software stack and implementing an industry-standard interface. Regardless of whether you choose to pursue application development goals as a pure developer or as a software engineer

CS 340 Final Project Guidelines and Rubric  Overview The final project will encompass developing a web service using a software stack and impleme