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Mathematics, 14.12.2019 00:31 barbar12345
Five hundred randomly selected automobile owners were questioned on the main reason they had purchased their current automobile. the results are given below.
styling engineering fuel economy total
male 70 130 150 350
female 30 20 100 150
total 100 150 250 500
give your conclusion for this test with 90% confidence level.
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Five hundred randomly selected automobile owners were questioned on the main reason they had purchas...
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