Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-chi-squared-1149-en_vufsw-chi-squared-1149-en
   name	vufsw-chi-squared-1149-en
   section	inferential statistics/nhst/test statistic/chi-squared
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	calculation
   Program	calculator
   Language	English
   Level	statistical literacy

   Question

   A student at VU University Amsterdam conducted research into the use of social media among young people. For his thesis he collected data on the use of Facebook from 224 students. In the table below the gender of the youngsters is plotted to the question whether they have a Facebook account (actually observed numbers).

   Facebook account	yes	no	total
   men	97	12	109
   women	106	9	115
   total	203	21	224

   The researcher wants to know if female students are more often members of Facebook than male students. He performs a Chi-square test and receives a Chi-square value of 0.85. He tests with a significance level (alpha) of 0.05. What is the correct conclusion based on this Chi-square test?

   
   
   1. FALSE: Female students are significantly more likely to be members of Facebook than male students.
   2. TRUE: Female students are not significantly more likely to be members of Facebook than male students.
   3. FALSE: For the group of women there is a significant link between gender and Facebook membership, while for the group of men there is none significant relationship between these two variables.
   4. FALSE: The above data provide too little information to come te a conclusion.
   
   

   Solution

   The chi square is lower than the critical value (see table).
   If you want to know more about the chi square test watch this clip

   
   
   1. False
   2. True
   3. False
   4. False