An internet service provider wishes to estimate, to within five percentage error, the current proportion of all email that is spam, with 95% confidence. Last year the proportion that was spam was 80%. Estimate the minimum size sample required if the total email that is spam is 10,000.

An internet service provider wishes to estimate, to within five percentage error, the current proportion of all email that is spam, with 95% confidence. Last year the proportion that was spam was 80%. Estimate the minimum size sample required if the total email that is spam is 10,000.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 9SGR

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Question

Determine the sample size of the following problems. Show your solution.

1. An internet service provider wishes to estimate, to within five percentage error, the current proportion of all email that is spam, with 95% confidence. Last year the proportion that was spam was 80%. Estimate the minimum size sample required if the total email that is spam is 10,000.

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