Homework Help is Here – Start Your Trial Now!
Math
Statistics
A statistics student wanted to find out whether gender and the use of turn signals when driving were independent. When driving his truck for several weeks, he noted the gender of each person he observed and whether he or she used the turn signal when turning or changing lanes. A second student collected similar data with a smaller sample size. The data the students collected are shown in the tables below. Complete parts (a) through (d) below. Click the icon to view the first student's data. Click the icon to view the second student's data. a. From the first student's data, what percentage of men used turn signals, and what percentage of women used them? 55.9% of men used turn signals, and 68.6% of women used them. (Round to one decimal place as needed.) b. From the first student's data, assuming the conditions are met (although admittedly this was not a random selection), find a 95% confidence interval for the difference in percentages (men women). State whether the interval captures 0, and explain whether this provides evidence that the proportions of men and women who use signals differ in the population. The 95% confidence interval for the difference in percentages (men - women) is ( %. ☐ %). (Round to one decimal place as needed.) First Student's Turn Signal Data Second Student's Turn Signal Data - X Men Women Men Turn signal 540 448 Turn signal 54 No signal 426 205. No signal 43 F Total 966 653 Total 97 428 Women 45 20 65

A statistics student wanted to find out whether gender and the use of turn signals when driving were independent. When driving his truck for several weeks, he noted the gender of each person he observed and whether he or she used the turn signal when turning or changing lanes. A second student collected similar data with a smaller sample size. The data the students collected are shown in the tables below. Complete parts (a) through (d) below. Click the icon to view the first student's data. Click the icon to view the second student's data. a. From the first student's data, what percentage of men used turn signals, and what percentage of women used them? 55.9% of men used turn signals, and 68.6% of women used them. (Round to one decimal place as needed.) b. From the first student's data, assuming the conditions are met (although admittedly this was not a random selection), find a 95% confidence interval for the difference in percentages (men women). State whether the interval captures 0, and explain whether this provides evidence that the proportions of men and women who use signals differ in the population. The 95% confidence interval for the difference in percentages (men - women) is ( %. ☐ %). (Round to one decimal place as needed.) First Student's Turn Signal Data Second Student's Turn Signal Data - X Men Women Men Turn signal 540 448 Turn signal 54 No signal 426 205. No signal 43 F Total 966 653 Total 97 428 Women 45 20 65

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
100%
Part b and c please?
A statistics student wanted to find out whether gender and the use of turn signals when driving were independent. When driving his truck for several weeks, he noted the gender of each person he observed and whether he or she used the turn signal when turning or changing lanes. A second student collected similar data with a smaller sample size. The data the students collected are shown in the tables below. Complete parts (a) through (d) below. Click the icon to view the first student's data. Click the icon to view the second student's data. a. From the first student's data, what percentage of men used turn signals, and what percentage of women used them? 55.9% of men used turn signals, and 68.6% of women used them. (Round to one decimal place as needed.) b. From the first student's data, assuming the conditions are met (although admittedly this was not a random selection), find a 95% confidence interval for the difference in percentages (men women). State whether the interval captures 0, and explain whether this provides evidence that the proportions of men and women who use signals differ in the population. The 95% confidence interval for the difference in percentages (men - women) is ( %. ☐ %). (Round to one decimal place as needed.) First Student's Turn Signal Data Second Student's Turn Signal Data - X Men Women Men Turn signal 540 448 Turn signal 54 No signal 426 205. No signal 43 F Total 966 653 Total 97 428 Women 45 20 65
Transcribed Image Text:A statistics student wanted to find out whether gender and the use of turn signals when driving were independent. When driving his truck for several weeks, he noted the gender of each person he observed and whether he or she used the turn signal when turning or changing lanes. A second student collected similar data with a smaller sample size. The data the students collected are shown in the tables below. Complete parts (a) through (d) below. Click the icon to view the first student's data. Click the icon to view the second student's data. a. From the first student's data, what percentage of men used turn signals, and what percentage of women used them? 55.9% of men used turn signals, and 68.6% of women used them. (Round to one decimal place as needed.) b. From the first student's data, assuming the conditions are met (although admittedly this was not a random selection), find a 95% confidence interval for the difference in percentages (men women). State whether the interval captures 0, and explain whether this provides evidence that the proportions of men and women who use signals differ in the population. The 95% confidence interval for the difference in percentages (men - women) is ( %. ☐ %). (Round to one decimal place as needed.) First Student's Turn Signal Data Second Student's Turn Signal Data - X Men Women Men Turn signal 540 448 Turn signal 54 No signal 426 205. No signal 43 F Total 966 653 Total 97 428 Women 45 20 65
Expert Solution
steps

Step by step

Solved in 2 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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