Question: The sample mean is x 93.3. Let x be a random variable representing glucose readings taken from Gentle Ben. We may assume that x has

The sample mean is x 93.3. 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 = 12.5. The mean glucose level for horses should be = 85 mg/100 ml. Do these data indicate that Gentle Ben has an overall average glucose level higher than 85? Use = 0.05. Compute the z value of the sample test statistic. (Round your answer to two decimal places.)

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