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Math

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A random survey of 500 households
determines that 20% of the households would do so and that each participating
household expects to recycle about 100 cans monthly with a standard deviation
of 30 cans.

Question

(a) What is the 95%
confidence interval regarding the percentage of households expected to
recycle?

(b) what is the 95% confidence interval regarding the number of cans to be recycled?

  • Math -

    is 7.02 correct for A
    and I am still stuck on B

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