Answer these question A researcher wishes to estimate, with 99% confidence, the population proportion of motor vehicle fatalities that were caused by alcohol-impaired driving. His estimatemust 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 38% 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 that no prior information is available?=4 (Round up to the nearest whole number as needed.)(b) What is the minimum sample sizė needed using a prior study that found that 38% of motor vehicle fatalities that were caused by alcohol-impaired driving?=\4 (Round up to the nearest whole number as needed.)(c) How do the results from (a) and (b) compare?O A. Having an estimate of the population proportion raises the minimum sample size needed.O B. Having an estimate of the population proportion has no effect on the minimum sample size needed.O C. Having an estimate of the population proportion reduces the minimum sample size needed.Next11:59pm74 FIQere to searchCop

Given that Margin of error, E = 3% = 0.03 Level of confidence = 99%. The critical value of Z at 99%…

A researcher wishes to estimate, with 99% confidence, the population proportion of motor vehicle fatalities that were caused by alcohol-impaired 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 38% of motor vehicle fatalities that were caused by alcohol-impaired driving. (c) Compare the results from parts (a) and (b). ...

A researcher wishes to estimate, with 99% confidence, the population proportion of motor vehicle fatalities that were caused by alcohol-impaired 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 38% of motor vehicle fatalities that were caused by alcohol-impaired driving. (c) Compare the results from parts (a) and (b). ...

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 5E

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