A nine year old gets 3.65 for allowance. Sample of 45 9 year olds in Tennessee revealed mean allowance 3.69 with a standard dev. of .24 . At .05 significance is there a difference mean allowance in Alabama for 9 year olds.© BrainMass Inc. brainmass.com June 3, 2020, 9:07 pm ad1c9bdddf
M = 3.65
N = 9
Sample mean is X = 3.69
SD = .24
Ho: M = 3.65
Ha: M ≠ 3.65
This is a two-tailed t test with significance level ...
The mean and standard deviation of allowance in Tennessee are discussed.