od and food In a study of the effects of mood on evaluation of nutritious food 208 subjects were ran domly assigned to read

Question

od and food In a study of the effects of mood on evaluation of nutritious food 208 subjects were ran domly assigned to read either a happy story to induce a positive mood or a control no story neutral mood group Subjects were then asked to evaluate their atti tude toward a certain indulgent food on a nine point scale with higher numbers indicating a more positive attitude toward the food The following table summa rizes data on the attitude rating 14 Group Positive mood Neutral mood n 104 104 X S 4 30 2 05 5 50 1 74 a What are the standard errors of the sample means of the two groups b What degrees of freedom does the conservative Op tion 2 use for two sample t procedures for these data c Test the null hypothesis of no difference between the two group means against the two sided alterna

Kunduz · Accepted Answer

Click to see the answer