The analyze results of two instruments A & B, show the following data:
Instrument A : Mean = 14.2, Std Dev = 1.4, N = 250
Instrument B : Mean = 13.0, Std Dev = 0.8, N = 200
Significance Level = .05
Calculate the p value.
Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.