In a study of gender-typing of toys, parents and non-parents were asked to rate the gender appropriateness of toys on a scale of 1 (Definitely for girls) to 5 (Definitely for boys). The investigators did a regression analysis of the parents mean scores vs. the non-parents mean scores for each toy. A computer-generated normal probability plot of the residuals is shown below. 
Write a brief paragraph describing the plot. Based on your description recommend to the investigators whether or not the appropriate assumption is met for simple linear regression.
Definitions:
Shape Constancy
The perceptual phenomenon wherein the perceived shape of an object remains constant despite changes in its retinal image due to varying angles and distances.
Dinner Plate
A large, flat dish from which main meals are typically eaten, an essential component of dining tableware.
Consistent Form
The quality of maintaining uniformity or stability in structure or appearance over time.
Color Constancy
The perceptual property that ensures an object appears the same color under varying lighting conditions.
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