A study of households is to be undertaken to estimate mean annual expenditure on residential home improvements. It is desired to estimate this mean within $10 with a confidence level of 99%. A planning value of σ = $160 is reasonable. Determine the sample size. Determine the sample size if the specified width of the 99% confidence interval is $40. What do both the sample sizes imply about the precision and the required sample size?
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"of" (and any subsequent words) was ignored because we limit queries to 32 words.
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