2. The manager of the aluminum recycling division of Environmental Services want

Question

2. The manager of the aluminum recycling division of Environmental Services wants a survey which will tell him how many households in the city of Seattle, Washington (approximately 500,000 households), will voluntarily wash out, store, and then transport all of their aluminum cans to a recycling center located in the downtown area and only open on Sundays. A random survey of 500 households determines that 20% of households would do so and that each participating household expects to recycle about 100 cans monthly with a standard deviation of 30 cans. What is the value of parameter estimation in this instance? 1) estimate the percent of households

Explanation / Answer

2.
Parameter of estimation is the proportion of households participating in the recycle

3.

From the above calculated CI, we can conclude that sample mean is different from the mean of $20

CI for 95% n 49 mean 22.6 z-value of 95% CI 1.9600 std. dev. 2.5 SE = std.dev./sqrt(n) 0.35714 ME = z*SE 0.69999 Lower Limit = Mean - ME 21.90001 Upper Limit = Mean + ME 23.29999 95% CI (21.9 , 23.3 )

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