A sports shop selects a random sample and records the sales of items made in China and those made in America. Country of Origin n Mean Std. Deviation China 50 22.5 9.75 America 33 33.15 11.6 b)...


A sports shop selects a random sample and records the sales of items made in China and those made in America.

























Country of Origin



n



Mean



Std. Deviation



China



50



22.5



9.75



America



33



33.15



11.6



b) Calculate a 95% confidence interval for the mean sales amount made in America



Jun 07, 2022
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