Mathematics, 19.11.2019 03:31 mjam85877
An electronic retailer believes that, at most 40% of their cellphone inventory was sold during november. the retailer surveyed 80 dealers and found that 38% of the inventory was sold. since 38% less than 40%, is the difference of 2 percentage points sampling error or a significant difference? test at .05 level.
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An electronic retailer believes that, at most 40% of their cellphone inventory was sold during novem...
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