Question

In a survey 1000 adults were asked whether they used a smartphone, a mobile phone (but not a smartphone) or did not use a mobile phone. The results were as follows: Mobile phone use Age of respondent | Smartphone | Mobile phone but not smartphone | No use | Total 16 to 24 | 126 | 62 | 6 | 194 25 to 34 | 128 | 89 | 7 | 224 35 to 54 | 107 | 111 | 3 | 221 55 to 64 | 47 | 127 | 14 | 188 65 or older | 5 | 110 | 58 | 173 Total | 413 | 499 | 88 | 1000 Using these results the relationship between the age of the respondent and the type of mobile phone they use is to be tested using the ?² test for contingency tables. In this test, what is the expected value for the respondents aged 55 to 64 who use a mobile phone but not a smartphone? (Give your answer correct to three decimal places.)

          In a survey 1000 adults were asked whether they used a smartphone, a mobile phone (but not a smartphone) or did not use a mobile phone. The results were as follows:

Mobile phone use
Age of respondent | Smartphone | Mobile phone but not smartphone | No use | Total
16 to 24 | 126 | 62 | 6 | 194
25 to 34 | 128 | 89 | 7 | 224
35 to 54 | 107 | 111 | 3 | 221
55 to 64 | 47 | 127 | 14 | 188
65 or older | 5 | 110 | 58 | 173
Total | 413 | 499 | 88 | 1000

Using these results the relationship between the age of the respondent and the type of mobile phone they use is to be tested using the ?² test for contingency tables.

In this test, what is the expected value for the respondents aged 55 to 64 who use a mobile phone but not a smartphone? (Give your answer correct to three decimal places.)

In a survey 1000 adults were asked whether they used a smartphone, a mobile phone (but not a smartphone) or did not use a mobile phone. The results were as follows:

Mobile phone use
Age of respondent | Smartphone | Mobile phone but not smartphone | No use | Total
16 to 24 | 126 | 62 | 6 | 194
25 to 34 | 128 | 89 | 7 | 224
35 to 54 | 107 | 111 | 3 | 221
55 to 64 | 47 | 127 | 14 | 188
65 or older | 5 | 110 | 58 | 173
Total | 413 | 499 | 88 | 1000

Using these results the relationship between the age of the respondent and the type of mobile phone they use is to be tested using the ?² test for contingency tables.

In this test, what is the expected value for the respondents aged 55 to 64 who use a mobile phone but not a smartphone? (Give your answer correct to three decimal places.)

Added by Sara J.

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