SU Spotify Discussion

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Independent Samples t-test

• Dataset: SpotifyHypTest
• Key variables:
• ImpUse1, SpotTypeR
Questions
1. The brand manager thinks there is no difference in the importance of exclusive content on
Spotify between Free users and Premium users of Spotify. Write the null and alternative
hypotheses.
2. How many users of each type are there in the dataset?
3. Which group finds exclusive content to be more important?
4. Is the difference in importance of exclusive content significant? Which t-statistic and p-
value are needed to answer this question? Why?
5. Should we reject the null hypothesis? Why or why not?
Paired Samples t-test
• Dataset: SpotifyHypTest
• Key variables:
• AttSpotify, AttSndcld
Questions
1. The CEO of Spotify thinks people like Spotify more than SoundCloud. Write the null and
alternative hypotheses.
2. What is the correlation between Spotify and SoundCloud? Is it significant?
3. What is the t-statistic and the p-value for the comparison between Spotify and Sound
Cloud? What should we infer from these numbers?
4. Should we reject the null hypothesis? Why or why not?

 
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