OPRE 6301
Central Texas College
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OPRE 6301 Exam 2 Questions and Answers- A graded
- Exam (elaborations) • 10 pages • 2023
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A race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 48.5
seconds with a standard deviation of 1.47 seconds. A 95% confidence interval for the 0 to 60 time is
45.2 seconds to 51.8 seconds.
True
False
If all possible samples of size n are drawn from a normal population, the probability distribution of the
sample mean is a normal distribution.
True
False
A sample of size n is selected at random from an infinite population. As n increases, ...
Exam (elaborations)
OPRE 6301 Exam 2 Questions and Answers- A graded
Last document update:
ago
A race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 48.5 seconds with a standard deviation of 1.47 seconds. A 95% confidence interval for the 0 to 60 time is 45.2 seconds to 51.8 seconds. True False If all possible samples of size n are drawn from a normal population, the probability distribution of the sample mean is a normal distribution. True False A sample of size n is selected at random from an infinite population. As n increases, ...
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