Confidence interval regarding number of cans to berecycled

Reference no: EM13331535

The manager of the aluminum recycling division ofEnvironmental Services wants a survey which will tell him how manyhouseholds in the city of Seattle, Washington, will voluntarilywash out, store, and then transport all of their aluminum cans to acentral recycling center located in the downtown area and only openon Sunday mornings.

A random survey of 500 households determines that 20% of thehouseholds would do so and that each participating householdexpects to recycle about 100 cans monthly with a standard deviationof 30 cans. (a) What is the 95% confidence interval regardingthe percentage of households expected to recycle? (b) What isthe 95% confidence interval regarding the number of cans to berecycled?

Reference no: EM13331535

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