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21-12-2022
Mathematics

Answered

a computer software company would like to estimate how long it will take a beginner to become proficient at creating a graph using their new spreadsheet package. past experience has indicated that the time required for a beginner to become proficient with a particular function of the new software product has an approximately normal distribution with a standard deviation of 16 minutes. find the sample size necessary to estimate the true average time required for a beginner to become proficient at creating a graph with the new spreadsheet package to within 3 minutes with 95% confidence.answer

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