3) The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour. To increase arrivals, a new air traffic control procedure is implemented. a) State the Hypothesis to show there has been a significant increase in the mean number of arrivals per hour. b) To test the hypothesis, O'Hare Airport takes data on the next 30 days with marginal weather. The data appear in the Airport worksheet of the W9 Hypothesis Test HW data workbook on Moodle. Use JMP to test the hypothesis of part a).

The number of semester hours of college credit taken by first-time candidates for a certain professional exam has a Normal distribution with a mean of 120 hours and a standard deviation of 16 hours. Consider a random sample of n first-time candidates for the exam and let x represent the mean number of hours of college credit taken for the sample. Complete parts a through e below. Click the icon to view the table of normal curve areas. ..... a. Describe the shape of the sampling distribution of x. A. The shape is Normal distribution only when sample size is greater than 30 B. The shape is Normal distribution for any sample size O C. is always the same as the distribution of the population D. The shape is skewed right b. If 16 first-time candidates for the exam are randomly selected, what is the probability that the mean number of hours of college credit taken by these students x is between 118 and 122 hours? P(118 < x <122) = (Round to four decimal places as needed.) c. If 64 first-time…

Find the mode(s) for this lists of numbers.    9 12 16 19 23 30 30 55 60 69 79 Mode =  3 4 14 21 22 30 30 47 48 50 80 89 89 Mode =  2 9 11 20 23 30 30 30 39 43 51 52 81 81 Mode =

Weight City MPG 3968 20 3583 22 3470 22 3527 23 3990 18 4724 17 3692 21 3315 22 3616 20 5527 14 3719 16 3097 26 3800 19 3532 25 2269 31 5674 15 3402 20 4029 19 3996 19 3242 23 2434 31 2575 29 2960 27 3618 15 4054 19 3192 24 3305 23 3605 19 4240 15 3933 18 3633 19 3790 17 3477 20 3258 21 4685 17 2776 25 2615 24 3186 21 5137 13 3461 21 4233 16 4178 18 4702 17 3713 22 5794 14 2306 28 3194 26 3428 22 4894 12 4751 17 2605 29 3296 25 5267 13 2789 25 3570 19 4011 18 2363 27 4398 15 2806 25 2127 36 2665 27 3419 24 3427 24 3280 25 5765 13 3465 24 2295 30 3038 22 3070 25 4711 17 3230 24 3528 21 4667 16 SUMMARY OUTPUT                                   Regression Statistics               Multiple R 0.894328844               R Square 0.799824082               Adjusted R Square 0.797004703               Standard Error 2.238112689…