A cell phone company wants to determine if the use of text messaging is independent of age. The following data has been collected from a random sample of 300. Regularly use text messaging Do not regularly use text messaging Under 21 82 38 21-39 57 34 40 and over 6 83 Determine whether the use of text messaging is independent of age at 0.01 level of significance. Choose the best answer A. Use of text messaging is dependent of age because chi-square statistic is more than 15.086. B. Use of text messaging is dependent of age because chi-square statistic is more than 11.071. C. Use of text messaging is dependent of age because chi-square statistic is more than 9.210. D. Use of text messaging is dependent of age because chi-square statistic is more than 5.992.
A cell phone company wants to determine if the use of text messaging is independent of age. The following data has been collected from a random sample of 300.
|
|
Regularly use text messaging |
Do not regularly use text messaging |
|
Under 21 |
82 |
38 |
|
21-39 |
57 |
34 |
|
40 and over |
6 |
83 |
Determine whether the use of text messaging is independent of age at 0.01 level of significance. Choose the best answer
A. Use of text messaging is dependent of age because chi-square statistic is more than 15.086.
B. Use of text messaging is dependent of age because chi-square statistic is more than 11.071.
C. Use of text messaging is dependent of age because chi-square statistic is more than 9.210.
D. Use of text messaging is dependent of age because chi-square statistic is more than 5.992.
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