Gentle Ben is a Morgan horse at a Colorado dude
ranch. Over the past 8 weeks, a
veterinarian took glucose readings and found a sample mean of 93.8. Let x be a random variable
representing glucose readings taken from Gentle Ben. We may assume that x has a normal
distribution, and we know from past experience that σ = 12.5. The mean glucose for horses should be µ = 85
mg/100ml. Doe these data indicate that Gentle
Ben has an overall average glucose level higher than 85. Use a 0.05 level of significance.