A Researcher Wishes To Estimate With 95 Confidence The Population Proportion Of Motor Vehicle Fatalities That Were Ca 1 (24.47 KiB) Viewed 32 times
A Researcher Wishes To Estimate With 95 Confidence The Population Proportion Of Motor Vehicle Fatalities That Were Ca 2 (11.2 KiB) Viewed 32 times
A researcher wishes to estimate, with 95% confidence, the population proportion of motor vehicle fatalities that were caused by alcohol-impaimed driving. His estimate must be accurate within 3% of the population proportion (a) No preliminary estimate is available. Find the minimum sample size needed (b) Find the minimum sample size needed, using a prior study that found that 26% of motor vehicle fatalities that were caused by alcohol-impaired driving (c) Compare the results from parts (a) and (b) (a) What is the minimum sample size needed assuming thao prior information is available? n=(Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 26% of motor vehicle fatalities that were caused by alcohol-impaired driving? (Round up to the nearest whole number as needed.) (c) How do the results from (a) and (b) compare? no OA. Having an estimate of the population proportion raises the minimum sample size needed. OB. Having an estimate of the population proportion reduces the minimum sample size needed. and then time.
(c) How do the results from (a) and (b) compare? OA Having an estimate of the population proportion raises the minimum sample size needed OB. Having an estimate of the population proportion reduces the minimum sample size needed OC. Having an estimate of the population proportion has no effect on the minimum sample size needed
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