Many fast-food restaurants have soft drink dispensers with preset amounts, so that when the operator merely pushes a button for thedesired rink the cup is automatically filled. This method apparently saves time and seems to increase worker productivity. Aresearcher randomly selects 9 workers from a restaurant with automatic dispensers and 9 works from a restaurant with manualdispensers. At a 1% significance level, use the Mann-Whitney U Test to test whether workers with automatic dispensers aresignificantly more productive.Automatic (Group 1): 153, 128, 143, 110, 152, 168, 144, 137, 118Manual (Group 2): 105, 118, 129, 114, 125, 117, 106, 92, 126What is the alternative hypothesis for this study?O There is no difference in worker productivity between restaurants with automatic and manual dispensers.O Worker productivity is lower with automatic dispensers.O Automatic dispensers fill cups faster than manual dispensers.O Worker productivity is higher with automatic dispensers.What rank will be given to the observation value, 118 that is in both the automatic and manual groups? (Round answer to 1 decimal).When rounding the U test statistic up to the next value, what is the p-value from the Mann Whitney Table of p-values? (Round to 4decimal places)What can be concluded from this study at a 1% significance level?O Worker productivity is lower with automatic dispensers.O There is no difference in worker productivity between restaurants with automatic and manual dispensers.O Worker productivity is higher with automatic dispensers.O Automatic dispensers fill cups faster than manual dispensers.

Many Fast-food Restaurants have soft drink dispensers with preset amounts. To test: H0: The two…

Answered: e Mann-Whitney U Test

Math

Statistics

e Mann-Whitney U Test

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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