Answered: (a) Is there evidence that field of…

Name: The authors of a paper carried out a study to investigate if smoking r
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The authors of a paper carried out a study to investigate if smoking rates were different for college students in different majors. Each student in a large random sample of students at a university was classified according to field of study and wheth

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

Related questions

Topic Video

Question

The authors of a paper carried out a study to investigate if smoking rates were different for college students in different majors. Each student in a large random sample of students at a university was classified according to field of study and whether or not they had smoked in the past 30 days. The data are given in the accompanying table.

Field of Study	Smoked in the Last 30 Days	Did Not Smoke in Last 30 Days
1. Undeclared	179	489
2. Art, design, performing arts	149	336
3. Humanities	197	454
4. Communication, languages	233	388
5. Education	56	170
6. Health sciences	227	717
7. Mathematics, engineering, sciences	245	924
8. Social science, human services	306	594
9. Individualized course of study	134	260

(a)

Is there evidence that field of study and smoking status are not independent? Use the accompanying Minitab output to test the relevant hypotheses using

? = 0.01.

Find the test statistic and P-value. (Round your test statistic to three decimal places and your P-value to three decimal places.)

(Hint: See Example 14.10.)

Chi-Square Test: Smoked, Did Not Smoke

Expected counts are printed below observed counts
Chi-Square contributions are printed below expected counts
	Smoked	Did Not Smoke	Total
1	179	489	668
	190.32	477.68
	0.673	0.268
2	149	336	485
	138.18	346.82
	0.847	0.337
3	197	454	651
	185.48	465.52
	0.716	0.285
4	233	388	621
	176.93	444.07
	17.768	7.079
5	56	170	226
	64.39	161.61
	1.093	0.436
6	227	717	944
	268.96	675.04
	6.545	2.608
7	245	924	1169
	333.06	835.94
	23.284	9.277
8	306	594	900
	256.42	643.58
	9.586	3.819
9	134	260	394
	112.26	281.74
	4.212	1.678
Total	1726	4332	6058
Chi-Sq = 90.514, DF = 8, P-Value = 0.000

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

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.

Similar questions