iQ10 In a survey 1000 adults were asked whether they used a

iQ10

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:

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 ?? test for contingency tables.

In this test, what is the expected value for the respondents aged 35 to 54 who use a smartphone? (Give your answer correct to three decimal places.)

Solution

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 ?