The brain volumes (cm³) of 20 brains have a mean of 1059.4

Last updated: 7/17/2022

The brain volumes (cm³) of 20 brains have a mean of 1059.4 cm³ and a standard deviation of 127.1 cm³. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1273.6 cm³ be significantly high? Significantly low values are cm³ or lower. (Type an integer or a decimal. Do not round.)