How often do users of a certain social media post on the site? The accompanying table represents the frequency of posting for a sample of 959 respondents classified according to their age groups. At the 0.10 level of significance, is there evidence of a relationship between the frequency of posting and age group? State the null and alternative hypotheses to test. H0: H1:
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
How often do users of a certain social media post on the site? The accompanying table represents the frequency of posting for a sample of 959 respondents classified according to their age groups. At the 0.10 level of significance, is there evidence of a relationship between the frequency of posting and age group?
State the null and alternative hypotheses to test.
H0:
H1:
![Type of favorite music classified by age group
FREQUENCY
AGE
18-22
23-35
36-49
50-64
65 and over
Total
Several times a
day
21
22
12
1
58
About once a
30
37
14
3
86
day
3-5 days per
week
35
32
8.
3
121
1-2 days per
week
33
71
38
19
10
171
Every few weeks
Less often
20
67
46
26
4
163
18
58
56
64
18
214
Never
8.
13
40
65
20
146
Total
165
311
238
187
58
959
Print
Done
2.
99
2.
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