logo
+1-617-874-1011 (US)
+61-7-5641-0117 (AU)
+44-117-230-1145 (UK)
Live Chat

Statistics Proportion

Statistics Proportion: Using Minitab


It is a popular myth that men are heavier drinkers than women.

QUESTION:

To test this, random samples of 875 Men and 854 Women are selected from a Saturday afternoon football crowd, and given a standard sobriety test; 435 men and 378 women failed the test. Do these results support the popular myth? Give a reason for your answer; using minitab attach document in tutorial

Solution:

Null Hypothesis:
H0: proportion

Alternative Hypothesis:
statistics proportionH1:

Test Statistic:

Z =statistics Assignment Help where statistics

We obtain the result using Minitab

************************
Sample N Sample p
1 435 875 0.497143
2 378 854 0.442623

************************

Difference = p (1) - p (2)
Estimate for difference: 0.0545199
95% lower bound for difference: 0.0150918
Test for difference = 0 (vs > 0): Z = 2.27 P-Value = 0.011

Fisher's exact test: P-Value = 0.013

Conclusion:
At α=0.05, since the p value is < 0.05, we reject the null hypothesis, thus we conclude that that men are heavier drinkers than women.

Statistics Proportion Test
Improve Your Grades with Custom Writing Help
Homework Help
Writing Help
Editing Services
Plagiarism check
Proofreading services
Research Project help
Custom writing services
scanner
E learning blogs

Disclaimer : The study tools and academic assistance/guidance through online tutoring sessions provided by AssignmentHelp.Net is to help and enable students to compete academically. The website does not provide ghostwriting services and has ZERO TOLERANCE towards misuse of the services. In case any user is found misusing our services, the user's account will be immediately terminated.