Question

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 Hypothesis Tests HW data workbook on Moodle. Use JMP to test the hypothesis of part a).

c) Using  = 0.05, draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem.

d) Use the PValue Animation in JMP to determine the largest value that you can conclude the mean number of arrivals per hour is greater than at  = 0.05?

Day	Rate
1	186
2	201
3	205
4	193
5	199
6	192
7	195
8	208
9	203
10	201
11	227
12	231
13	199
14	195
15	214
16	215
17	197
18	213
19	217
20	197
21	183
22	206
23	187
24	210
25	208
26	199
27	221
28	180
29	171
30	176

Answer 1

a) Hypothesis

H0 : mu is equal to 195

H1: mu is greater than 195

b) following are the calculation of testing the hypothesis,

d) conclusion -

Hence there is no significant increase in the mean of arriavals.