Question

Charles See, founder of See's Candy, wanted to conduct a study to determine if type of chocolate preference was related to personality characteristics. He randomly selected 8 customers and asked them if they like dark chocolate and if they would describe themselves as a "mellow person. Both questions were rated on a 5-point scale (0 not at all, 1 -maybe a little, 2-sort of, 3 -yes, 4 definitely).Conduct a hypothesis test at a - .05 to examine if there is a significant correlation between dark chocolate preference and having a mellow personality. 1. State the null hypothesis in symbols or in words (1 point). 2. State the alternative hypothesis in symbols or in words (1 point). ні: tto trs net populot.on (enttien lufficiout 3. Choose an a level. a .05 4. Calculate your degrees of freedom, determine your critical r value (look in Table E) and df- 6 Our critical value for r is 2.447 İfthe absolute value ofris greater than or equal to 2.447, we will retect Heat t- lavel t sini trcance state the rejection rule. (I point). df N-2 5. Compute test statistic (1 point). Z.Z ry Mellow Dark 2mellow Z_chocolate Chocolate (Y 7639 9908 ,0792 7639 -.5257 1.297 5300 Mean - 2.00Mean 2.13 SD 1.309 SD 1.642 5.1175 Make a decision by applying the rejection rule. "To reject or not to reject. That is the question". Why did you make this decision (I point)? 6. 7. Compute and interpret the effect size (coefficient of determination) if applicable (I point). Effect 0 Small 09 Medium 25 Large 8. Write a conclusion paragraph in the context of the problem (1 point).

Answer 1

bkety ce) r0 'om CorrWafm Coedfichr 30.os d. zj absolute valus 91 YeTec