D. The population of first grade is N=300 children at a public school. A sample of 30 first grades revealed that 18 of the children need free lunches. Estimate the population proportion. 1.6667 .60 0.30 0.10 E. The population of first grade is N=300 children at a public school. A sample of 30 first grades revealed that 18 of the children need free lunches. Develop a 95% confidence interval. What is the z or t value? 1.645 2.575 1.96 .9500 F. The population of first grade is N=300 children at a public school. A sample of 30 first grades revealed that 18 of the children need free lunches. Develop a 95% confidence interval for the POPULAION PROPORTION. 250-350 .4335-.7665 .5550-.6550 .9250-.9750 G. Find sample Size of mean data. The standard deviation of a cell phone's life is 0.5 years. We want to be 95% confident that the error of the population is within 0.2 years. First what is E? 1.96 .5 24 .2
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We are given a sample of 30 first graders from a school, out of which 18 need free lunches. We are asked to estimate the population proportion of first graders who need free lunches based on this sample. Show more…
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