12.A Now that you have described the study sample characteristics, you will exam

Question

12.A Now that you have described the study sample characteristics, you will examine the relationships between caffeine intake and sleep. These analyses can be found in Table 4 and in the Figures. 12. Identify and interpret the statistical relationship between the following sleep variables and caffeine consumption. Include the statistics (p-values and r-values), an interpretation of the rvalue, and a statement about significance. a. Hours of sleep and caffeine consumption (3.5 points) a.l. r-value: a.2. p-value: a.3. Is this statistically significant? a.4. What is your interpretation of the relationship between these variables based on these statistics? b. Sleep quality index score and caffeine consumption (3.5 points) a.1. r-yalue: a.2. p-value: a.3. Is this statistically significant? a.4. What is your interpretation of the relationship between these variables based on these statistics? t nr thorn rocults what do you conclude is the relationship between caffeine |

Explanation / Answer

12. (a) (i) -0.210.
(ii) 0.01.
(iii) Since p-value is less than alpha = 0.05 = level of significance, it is statistically significant.
(iv) There exists a weak, negative linear relationship between hours of sleep and caffeine consumption.

12. (b) (i) 0.301
(ii) 0.001.
(iii) Since p-value is very much less than alpha = 0.05 = level of significance, it is statistically significant.
(iv) There exists a weak, positive linear relationship between sleep quality index score and caffeine consumption.

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