A local environmental organization is interested

Reference no: EM13613649

A local environmental organization is interested determining if the proportion of red cars in a city has increased from last years value of 10% to a value closer to 15%. A sample of 400 cars were taken and 60 were red.

A) state a null hypothesis H0 and an alternative H1.

B) what would you conclude at the 5% level of significance?

Reference no: EM13613649

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