Mathematics, 03.07.2019 05:10 AgentPangolin
The usa today reports that the average expenditure on valentine's day is $100.89. do male and female consumers differ in the amounts they spend? the average expenditure in a sample survey of 47 male consumers was $135.67, and the average expenditure in a sample survey of 30 female consumers was $68.64. based on past surveys, the standard deviation for male consumers is assumed to be $31, and the standard deviation for female consumers is assumed to be $20.
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Melody received $140 at the end of a certain week. how many customers did she advise that week?
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The usa today reports that the average expenditure on valentine's day is $100.89. do male and female...
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