b) A researcher wish to estimate, 95% confidence, the proportion of people who did not have a land line phone. A previous study that 40% of those interviewed did not have a land line phone. The researcher wishes to be accurate within 4% of the true proportion. Find the minimum sample size that necessary.

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b) A researcher wish to estimate, 95% confidence, the proportion of people who did not
have a land line phone. A previous study that 40% of those interviewed did not have a
land line phone. The researcher wishes to be accurate within 4% of the true proportion.
Find the minimum sample size that necessary.
Transcribed Image Text:b) A researcher wish to estimate, 95% confidence, the proportion of people who did not have a land line phone. A previous study that 40% of those interviewed did not have a land line phone. The researcher wishes to be accurate within 4% of the true proportion. Find the minimum sample size that necessary.
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