Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoccupied seats per flight over the past year. 100 flight records are randomly selected and the number of unoccupied seats are presented in the file Empty_Seat1.xlsx. If 95% confidence interval for the population mean number of unoccupied seats is to be computed, what is the margin of error?

0.7997

1.0005

1.0120

1.2199

None of the above

Number of Unoccupied Seats Per day

9

8

13

9

0

12

11

11

9

15

7

15

12

11

15

3

17

9

6

9

15

20

9

13

6

12

16

11

14

13

12

11

15

16

11

7

7

13

16

8

14

9

10

0

6

7

22

2

13

16

11

10

12

4

11

10

18

11

9

12

7

13

7

15

7

-1

15

13

10

10

13

28

-4

16

3

13

10

10

1

8

4

11

21

4

13

15

17

16

10

19

8

9

13

15

7

11

7

7

11

9