Suppose you are the operations manager at an airline company. The company guarantees its customers that its flights are delayed by at most three minutes on average, as opposed to much higher figures of competitors. You want to verify the company's claim. You have recorded the delay time of 25 flights of the company.

Perform the right type of hypothesis test in the right context

Which of the following statements is true?

You can reject the null hypothesis while testing at a 20% significance level but not at 10%

You can reject the null hypothesis while testing at a 10% significance level but not at 5%

You can reject the null hypothesis while testing at a 5% significance level but not at 1%

You can reject the null hypothesis while testing at a 1% significance level

Flight No.	Delay (mins)
1	2.78
2	3.44
3	2.5
4	3.58
5	2.61
6	3.19
7	3.84
8	2.86
9	3.44
10	3.65
11	3.11
12	3.15
13	3.95
14	3.44
15	2.91
16	3.99
17	3.59
18	3.57
19	2.99
20	2.07
21	2.25
22	3.68
23	3.23
24	2.81
25	1.9