Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-independent_samples_means-1162-en_vufsw-independent_samples_means-1162-en
   name	vufsw-independent samples means-1162-en
   section	inferential statistics/parametric techniques/t-test/independent samples means
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE, FALSE
   Type	calculation
   Program	calculator
   Language	English
   Level	statistical literacy

   Question

   Is gender related to the evaluation of politicians? A political journalist states that women will generally be more positive about female candidates than men. An American researcher wanted to test this hypothesis and collected data on people’s feelings about Sarah Palin in 2008, on a scale of 0 (very negative feelings) to 100 (very positive feelings). Below are the results.

   	N	mean	standard deviation	standard error
   Women (group 1)	855	48.53	26.87	0.92
   Men  (group 2)	1127	48.17	27.17	0.81

   What is the observed t-value for the test of the hypothesis?

   
   
   1. TRUE: 0.29
   2. FALSE: 0.39
   3. FALSE: 1.53
   4. FALSE: 3.96
   5. FALSE: 2.05
   
   

   Solution

   you can calculate this with:
   

   se= √((26,87*26,87)/855 + (27,17*1717/1127))= √(0,844+0,655)=1,224
   t= (48,55-48,17)/1,244=0,29

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