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A business student is interested in estimating the 95% confidence interval for the proportion of students...

A business student is interested in estimating the 95% confidence interval for the proportion of students who bring laptops to campus. He wishes a precise estimate and is willing to draw a large sample that will keep the sample proportion within six percentage points of the population proportion. What is the minimum sample size required by this student, given that no prior estimate of the population proportion is available? Use Table 1. (Round intermediate calculations to 4 decimal places and "z-value" to 3 decimal places. Round up your answer to the nearest whole number.)
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The problem is to estimate the required sample size in case of proportion value has no pre-estimate.

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