ryan_citelli
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- Joined
- Apr 12, 2012
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Suppose that the distribution of heights for a very large population follows a
normal curve with a mean of 65 inches and an SD of 3 inches.
A random sample is taken and it is claimed that the chance that the sample mean
is bigger than 66 inches is 1%.
The sample size must be about: (pick an option and explain)
(a) 9 (b) 37 (c) 49 (d) 60
(e) Cannot be worked out without more information
normal curve with a mean of 65 inches and an SD of 3 inches.
A random sample is taken and it is claimed that the chance that the sample mean
is bigger than 66 inches is 1%.
The sample size must be about: (pick an option and explain)
(a) 9 (b) 37 (c) 49 (d) 60
(e) Cannot be worked out without more information