By comparing the average temperatures in the second half to the first half of the 20^th century, determine if we have convincing evidence of the true global average increase in temperature over the 20^th century (average temperature 1951-2000 - average temperature 1900-1950) using a significance level of =0.05=0.05.

Part B: What is the value of the test statistic you found? Round to the nearest thousandth.

Part C: What is the P-value you found? Round to four decimal places.

The p-value is less than .