a soap manufacturing company was distributing a particular brands of soaps through a large nonof shops before a heavy add compaign average sales per shop was 140 dozen after the compaign a sample of 26 shops was taken and the average sale were found to be 147 dozen with a standard deviation of 16.. can u consider tha advertisement effective?
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soap manufacturing company was distributing a particular brands of soaps through a large nonof shops before a heavy add compaign average sales per shop was 140 dozen after the compaign a sample of 26 shops was taken and the average sale were found to be 147 dozen with a standard deviation of 16.. can u consider tha advertisement
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