(a) Determine the type of test statistic to use. Type of test statistic: (Choose one) ▼ (b) Find the value of the test statistic. (Round to two or more decimal places.) (c) Find the p-value. (Round to three or more decimal places.) (d) Can we reject the hypothesis that there is no dependence between age and regularity of email use? Use the 0.05 level of significance. O Yes O No

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Send data to Excel
Age (in years)
Under 18
18-35
36-54
55+
Total
134
134
48
88
On a
regular
124.84
40.80
404
basis
0.672
1.271
Regularity
of email
178
175
53
190
use
Not on a
regular
basis
184.16
60.20
596
0.456
0.861
Total
312
309
101
278
1000
Part 2
Answer the following to summarize the test of the hypothesis that there is no dependence betwe
regularity of email use. For your test, use the 0.05 level of significance.
(a) Determine the type of test statistic to
use.
Type of test statistic: (Choose one) ▼
(b) Find the value of the test statistic. (Round to two or more decimal places.)
(c) Find the p-value. (Round to three or more decimal places.)
(d) Can we reject the hypothesis that there is no dependence between age
and regularity of email use? Use the 0.05 level of significance.
O Yes
O No
Transcribed Image Text:Send data to Excel Age (in years) Under 18 18-35 36-54 55+ Total 134 134 48 88 On a regular 124.84 40.80 404 basis 0.672 1.271 Regularity of email 178 175 53 190 use Not on a regular basis 184.16 60.20 596 0.456 0.861 Total 312 309 101 278 1000 Part 2 Answer the following to summarize the test of the hypothesis that there is no dependence betwe regularity of email use. For your test, use the 0.05 level of significance. (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) ▼ (b) Find the value of the test statistic. (Round to two or more decimal places.) (c) Find the p-value. (Round to three or more decimal places.) (d) Can we reject the hypothesis that there is no dependence between age and regularity of email use? Use the 0.05 level of significance. O Yes O No
To determine a target audience for a new email package, a computer company surveyed a
sample of potential customers, asking each whether he/she uses email on a regular basis.
considered "a regular basis" to be at least three times a week.) The data, as summarized
table below, were classified according to two variables: the age of the respondent ("under
54", "55+") and regularity of email use ("on a regular basis" or "not on a regular basis").
Each cell of the table contains three numbers: the first number is the observed cell freque
second number is the expected cell frequency (fF) under the assumption that there is no
between age and regularity of email use and the third number is the following value.
fo-fE) (Observed cell frequency - Expected cell frequency )
fE
Expected cell frequency
The numbers labeled "Total" are totals for observed frequency.
Part 1
Transcribed Image Text:To determine a target audience for a new email package, a computer company surveyed a sample of potential customers, asking each whether he/she uses email on a regular basis. considered "a regular basis" to be at least three times a week.) The data, as summarized table below, were classified according to two variables: the age of the respondent ("under 54", "55+") and regularity of email use ("on a regular basis" or "not on a regular basis"). Each cell of the table contains three numbers: the first number is the observed cell freque second number is the expected cell frequency (fF) under the assumption that there is no between age and regularity of email use and the third number is the following value. fo-fE) (Observed cell frequency - Expected cell frequency ) fE Expected cell frequency The numbers labeled "Total" are totals for observed frequency. Part 1
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