A psychologist is investigating the relationship of ambient temperature and water consumption. She chooses 20 participants and measures how much water they consumed throughout the course of a day and what the high temperature was for that day. The data is presented below Temperature Water consumption (oz) 75 83 85 85 92 97 16 20 25 27 32 48 34 35 87 78 41 45 19 41 38 23 89 98 78 84 71 For this data you will:
Use the SPSS program to calculate the correlation and create a scatterplot
How would you describe this relationship? (both strength and direction, in your own Provide the appropriate output box . simple words)
Are these variables truly related or could there be a third variable at play?
Mediating or confounding variables Calculate the regression equation fshow your work) .
How much water should someone drink if the high temperature for that day was 70o degrees?
Calculate the proportionate reduction in error