Della has over 500 songs on her mobile phone, and she wants to estimate what proportion of the songs are by a female artist. She takes an SRS of 50 songs on her phone and finds that 20 of the songs sampled are by a female artist. Based on this sample, which of the following is a 99% confidence interval for the proportion of songs on her phone that are by a female artist? Choose 1 answer: 20(30) 20 + 1.96 50 20(30) 20 + 2.576V 50 0.40(0.60) 0.40 1.96 50

Della has over 500 songs on her mobile phone, and she wants to estimate what proportion of the songs are by a female artist. She takes an SRS of 50 songs on her phone and finds that 20 of the songs sampled are by a female artist. Based on this sample, which of the following is a 99% confidence interval for the proportion of songs on her phone that are by a female artist? Choose 1 answer: 20(30) 20 + 1.96 50 20(30) 20 + 2.576V 50 0.40(0.60) 0.40 1.96 50

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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