A researcher wishes to estimate the number of households with two types of vegetables in their backyard gardens in Meanwood Chamba Valley of Lusaka Province. How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 3%? A previous study indicates that the proportion of households with two types of vegetables in their backyard gardens is 25%

A researcher wishes to estimate the number of households with two types of vegetables in their backyard gardens in Meanwood Chamba Valley of Lusaka Province. How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 3%? A previous study indicates that the proportion of households with two types of vegetables in their backyard gardens is 25%

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Question

A researcher wishes to estimate the number of households with two types of
vegetables in their backyard gardens in Meanwood Chamba Valley of Lusaka
Province. How large a sample is needed in order to be 98% confident that the
sample proportion will not differ from the true proportion by more than 3%? A
previous study indicates that the proportion of households with two types of
vegetables in their backyard gardens is 25%.

Expert Solution