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Helena tells Juan that even though he found a rate of 9% hip hop/rap MEs, this doesn't contradict her assessment that 15% of MEs as a whole are hip hop/rap. Juan's result could be due to natural variability. Use your sampling distribution from Part A to find a range of values centered on the mean that includes 95% of the samples. Use this to determine whether Juan's result contradicts Helena's assessment.

Helena tells Juan that even though he found a rate of 9% hip hop/rap MEs, this doesn't contradict her assessment that 15% of MEs as a whole are hip hop/rap. Juan's result could be due to natural variability. Use your sampling distribution from Part A to find a range of values centered on the mean that includes 95% of the samples. Use this to determine whether Juan's result contradicts Helena's assessment.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Helena tells Juan that even though he found a rate of 9% hip hop/rap MEs, this doesn't contradict her assessment that 15% of MEs as a whole are hip hop/rap. Juan's result could be due to natural variability. Use your sampling distribution from Part A to find a range of values centered on the mean that includes 95% of the samples. Use this to determine whether Juan's result contradicts Helena's assessment.
Transcribed Image Text:Helena tells Juan that even though he found a rate of 9% hip hop/rap MEs, this doesn't contradict her assessment that 15% of MEs as a whole are hip hop/rap. Juan's result could be due to natural variability. Use your sampling distribution from Part A to find a range of values centered on the mean that includes 95% of the samples. Use this to determine whether Juan's result contradicts Helena's assessment.
Helena gathers data about the music preferences of users of a social media application. She gathers information on music events (MEs). In her study, a music event is defined as a posting that has a hashtag or is linked to other video- sharing websites. 1. From her data, Helena claims that about 15% of MEs on the application are hip hop/rap. Juan wants more proof of her claim. • Juan uses technology to determine the genres of music of 100 MEs he chooses at random. He determines that 9 were hip hop/rap. • Juan points out the 9% rate to Helena. Part A Assume Helena is correct and 15% of MEs on the app are hip hop/rap. Use random numbers and a simulated sampling distribution to simulate the outcome of several trials, in which each trial samples 100 MEs from the app and counts the number of hip hop/rap MEs. Make a histogram for your data. Is the model consistent with what you would expect? Explain.
Transcribed Image Text:Helena gathers data about the music preferences of users of a social media application. She gathers information on music events (MEs). In her study, a music event is defined as a posting that has a hashtag or is linked to other video- sharing websites. 1. From her data, Helena claims that about 15% of MEs on the application are hip hop/rap. Juan wants more proof of her claim. • Juan uses technology to determine the genres of music of 100 MEs he chooses at random. He determines that 9 were hip hop/rap. • Juan points out the 9% rate to Helena. Part A Assume Helena is correct and 15% of MEs on the app are hip hop/rap. Use random numbers and a simulated sampling distribution to simulate the outcome of several trials, in which each trial samples 100 MEs from the app and counts the number of hip hop/rap MEs. Make a histogram for your data. Is the model consistent with what you would expect? Explain.
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