Stat Test

• Continuous data is taking measurements of Dependent Variable
• Association between 2 variables uses correlation co-efficient
• Difference between 2 means uses student T-test
• Frequencies are used for individuals in categories
• Difference in individual categories uses Chi Squared
• Null hypothesis is when there is no significant difference between the expected and the observed frequency of Y
• Chi Squared


  $(O-E)^2/E$
• Stat tests are tested at 0.05
• Degrees of Freedom = Categories - 1
• If the Chi Squared critical value is more than or equal to the calculated value then accept null hypothesis
• If the Spearmans Rank critical value is equal to or more than calculated value, accept the null
• If the Student T-test critical value is equal to or higher than the calculated value, accept the null