Asked by Johnathan

3. A researcher wanted to study the effect of low light environments on the growth of alfalfa plants, so she grew six plants and measured their heights after two weeks. She calculated a sample mean of 5.2 cm with a standard deviation of 1.1 cm. If the heights of the first five plants in her sample were 4.1 cm, 4.9 cm, 3.9 cm, 6.0 cm, and 5.6 cm, what is the height of the other plant?


I keep getting 6.7 as the unknown length when I work backwards using the mean, but am not sure how the standard deviation works into the problem...
Answered by Scott
the s.d. is just a "smokescreen"

all you need is the mean and the heights
There are no AI answers yet. The ability to request AI answers is coming soon!