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3. Among all users on the app, 20% of MEs are rock music. The app makers want to know what percentage of MEs from users under 18 years old are rock music. From a sample of 200 MEs from users under 18 years old, 15% of those users' MEs turn out to be rock music. The app makers want to know if the percent of rock MEs coming from all users under 18 is really less than it is for users of all age groups combined. Write hypotheses for this situation and run a simulation to test the hypotheses. Make a histogram for your data. What hypothesis does the simulation support? Show your work.

3. Among all users on the app, 20% of MEs are rock music. The app makers want to know what percentage of MEs from users under 18 years old are rock music. From a sample of 200 MEs from users under 18 years old, 15% of those users' MEs turn out to be rock music. The app makers want to know if the percent of rock MEs coming from all users under 18 is really less than it is for users of all age groups combined. Write hypotheses for this situation and run a simulation to test the hypotheses. Make a histogram for your data. What hypothesis does the simulation support? Show your work.

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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Just number 3 part a is for refer

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.
3. Among all users on the app, 20% of MEs are rock music. The app makers want to know what percentage of MEs from users under 18 years old are rock music. From a sample of 200 MEs from users under 18 years old, 15% of those users' MEs turn out to be rock music. The app makers want to know if the percent of rock MEs coming from all users under 18 is really less than it is for users of all age groups combined. Write hypotheses for this situation and run a simulation to test the hypotheses. Make a histogram for your data. What hypothesis does the simulation support? Show your work.
Transcribed Image Text:3. Among all users on the app, 20% of MEs are rock music. The app makers want to know what percentage of MEs from users under 18 years old are rock music. From a sample of 200 MEs from users under 18 years old, 15% of those users' MEs turn out to be rock music. The app makers want to know if the percent of rock MEs coming from all users under 18 is really less than it is for users of all age groups combined. Write hypotheses for this situation and run a simulation to test the hypotheses. Make a histogram for your data. What hypothesis does the simulation support? Show your work.
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