Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took the following glucose readings from this horse (in mg/100 ml).

95

88

84

107

101

110

84

91

The sample mean is x 95.0. 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.

1. Compute the z value of the sample test statistic. (Round your answer to two decimal places.)

2. Find (or estimate) the P-value. (Round your answer to four decimal places.)