A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance f
1 answer:
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Answer:
a) x = 80.40
s = 29.54
b) lower limit = 69.53
upper limit = 91.27
Step-by-step explanation:
The mean price is:
The standard deviation is
We have to calculate a 90% CI for the mean.
The z-value for a 90% confidence interval is z=1.645.
The margin of error is:
The 90% CI is