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Mathematics, 20.08.2020 21:01 shawnamiller31412

SOMEONE HELP PLEASE I DON'T UNDERSTAND ANY OF THIS please help (1) The standard deviation for a set of data is 9.5. The mean is 205. What is the margin of error?

(2)The standard deviation of a population is 1.9.

What is the margin of error?

(3) The results of a survey indicate that the true proportion of households who want a park in their neighborhood is likely in the interval (0.52, 0.8) .

What is the point estimate of the proportion of households who want a park in their neighborhood?

(4) In a sample of 200 bottles at a factory, 38 had major defects. The sampling method had a margin of error of 0.02.

What is the interval estimate for the proportion that would have defects in the form (lower limit, upper limit) ?

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