america
...d at the same time behind a white parking lot line. Then the distance flown along an imaginary line perpendicular to the white line was measured with a measuring tape for each plane. After the ten trials, the data collected was used to determine the sample means, 0a and 0b, and the confidence interval with a significance level, ", of .05. Data and Analysis: Distance Flown (cm) Distance Flown by A vs. B Trial A B 1 236 565 2 265 517 3 280 470 4 362 499 5 287 400 6 295 600 7 328 551 8 189 451 9 501 552 10 386 434 0 312.9 503.9 s 87.56 64.40 The difference in the sample means was 191 cm. For our 95% confidence level, p=.025 because the sample is two-sided. The degrees of freedom were calculate as approximately 16.5328. 2.11 #t*#2.12, at these p and df values. A t statistic can be used because the distribution is roughly normal and the samples are independent. Using the two-sample t interval test on the calculator or the following formula: (01-02)"( (s12/n1)+(s22/n2)).5, the t confidence interval for these samples was computed as 118.1321#(ma-mb)#263.8679. The test statistic(t), (01-02)/((s1/n1)+(s2/n2)).5...