Statistics on the TI-84-IB Biology 1 HL-

Entering the Data…

Practice: Enter the following data

List 1 (L1) List 2 (L2)20 2818 2419 2424 2616 3018 2722 22

Basic Statistical Measures…

Practice: Find the MEAN & STDEV for L1 and L2

List 1 (L1) List 2 (L2)

MEAN

STDEV

List 1 (L1) List 2 (L2)

MEAN 19.57 25.86

STDEV 2.69 2.73

T-Tests…

Practice: Is there a significant difference between L1 and L2? What is the P-value?

(Let’s say they’re PAIRED data…)

P = 0.012

SIGNIFICANCE!!