The rise of online streaming services such as Netflix and HBO Go has dramatically altered the media habits of Americans, especially young adults. A survey was conducted by interviewers at Princeton Data Sources. They selected a nationwide random sample of 384 adults and asked, "What is the primary way you watch television: cable, online streaming, or digital antenna?" The observed counts are given in the side-by-side frequency bar graphs below. Cable or satellite subscription Online streaming service 2 Digital antenna 100 - 84 80- 70 61 60 - 52 40 - 37 31 Frequency

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The rise of online streaming services such as Netflix and HBO Go has dramatically altered the media
habits of Americans, especially young adults. A survey was conducted by interviewers at Princeton Data
Sources. They selected a nationwide random sample of 384 adults and asked, "What is the primary way
you watch television: cable, online streaming, or digital antenna?" The observed counts are given in the
side-by-side frequency bar graphs below.
Z Cable or satellite subscription
I Online streaming service
2 Digital antenna
ALL
100 -
84
80 -
70
61
60 -
52
40 -
31
37
20 -
15
30-49
50-64
Ages
18-29
65+
a) Is there convincing evidence that there is an association between age and the method of watching
TV in the population of U.S. adults?
b) Which cell contributes the most to the chi-square statistic? Describe how the observed and
expected counts differ for that category.
Transcribed Image Text:The rise of online streaming services such as Netflix and HBO Go has dramatically altered the media habits of Americans, especially young adults. A survey was conducted by interviewers at Princeton Data Sources. They selected a nationwide random sample of 384 adults and asked, "What is the primary way you watch television: cable, online streaming, or digital antenna?" The observed counts are given in the side-by-side frequency bar graphs below. Z Cable or satellite subscription I Online streaming service 2 Digital antenna ALL 100 - 84 80 - 70 61 60 - 52 40 - 31 37 20 - 15 30-49 50-64 Ages 18-29 65+ a) Is there convincing evidence that there is an association between age and the method of watching TV in the population of U.S. adults? b) Which cell contributes the most to the chi-square statistic? Describe how the observed and expected counts differ for that category.
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