Week 7 Hypothesis

American Paint horses have two color variations. Piebald is black with swatches of white. Skewbald is any other color with swatches of white. Just to be clear paint is a color and a breed, other equines can be piebald or skewbald they may not all be American Paint horses. (The remainder of this is completely fabricated). According to a study the piebald is the most prevalent coat color of American Paint horses. Given a sample mean (x-bar) of 62, a population standard deviation sigma of 4.5, from a previous study of 100 live births, find a "z" value and a "p" value. Another more recent study proposed a birth rate of 64 per 100. We believe the actual birth rate of Piebald Paints to be lower than this claim. Test less than 64.