A recent study shows that 77% of all people file their taxes yearly. A researcher takes a simple random sample of 100 people. For what value of p^ is there is a 20% chance that her sample proportion will be at or below? Round your answer to the nearest hundredth. Use the z-table given below:

A recent study shows that 77% of all people file their taxes yearly. A researcher takes a simple random sample of 100 people. For what value of p^ is there is a 20% chance that her sample proportion will be at or below? Round your answer to the nearest hundredth. Use the z-table given below:

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.1: Stem-and-leaf Plots And Histograms

Problem 2E

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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A recent study shows that 77% of all people file their taxes yearly. A researcher takes a simple random sample of 100 people.

For what value of p^ is there is a 20% chance that her sample proportion will be at or below?

Round your answer to the nearest hundredth. Use the z-table given below:

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