Ar A soap manufacturing company was distributing a

Last updated: 6/25/2023

Ar A soap manufacturing company was distributing a particular brand of soap through a large number of retail shops Before a heavy advertisement compaign the mean sales per week per shop was 140 dozens After the campaign a sample of 26 shops was taken and the mean sales was found to be 147 dozens with standard deviation 16 Can you consider the advertisement effective MUGLL 660 LOUD