A study was conducted to compare the average gestational length (in weeks) of uncomplicated pregnancies among women who engage in cardiovascular exercise >=5 times a week with women who do not exercise. We will call these two groups "heavy exercisers" and "no exercisers." Gestational length is time (in weeks) from conception to birth. A two-sample, two-sided t-test assuming unequal variance was conducted. The assumptions were met for this test. The test statistic was t= 0.91 and the p-value was 0.38. Assume the default alpha level is 0.05.

The probability that the two average gestational lengths are the same in the two populations (heavy vs. no exercisers) is about 0.38. True or False