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Sales per square foot in the most recent fiscal year are recorded for a random sample of 10 supermarket the data sales dollars per square
Sales per square foot in the most recent fiscal year are recorded for a random sample of 10 supermarket the data sales dollars per square foot are as follow 854 858 801 892 849 807 894 863 829 815 assume that condition for interference are met
-1 is there sufficient evidence at the 5% significance level
that the mean sale per square foot exceed 800
2- construct a 98% confidence interval for the mean sales per square foot
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