The baseball coach tracked how long it took 8 of his players to do a series of drills.  The times recorded (in minutes) are 8, 11, 9, 7, 5, 8, 7, and 8.  assuming the times follow a normal distribution, calculate a 95% confidence interval for the population mean. a.(6.43, 9.32) b.(7.11, 9.23) c.(7.01, 8.97) d.(6.41, 9.35)

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The baseball coach tracked how long it took 8 of his players to do a series of drills.  The times recorded (in minutes) are 8, 11, 9, 7, 5, 8, 7, and 8.  assuming the times follow a normal distribution, calculate a 95% confidence interval for the population mean.

a.(6.43, 9.32)
b.(7.11, 9.23)
c.(7.01, 8.97)
d.(6.41, 9.35)
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