Homework 8 Due December 4, 2020 no later than 11:59 pm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The US Environmental protection agency monitors levels of pollution in the air for cities across the country. |
Ozone pollution levels are measured using a 500-point scale; lower scores indicate little health risk, and |
higher scores indicate greater health risk. The following data show the peak levels of ozone pollution in |
four cities (Birmingham, Alabama: Memphis, Tennessee: Little Rock, Arkasas: and Jackson, ,Mississippi) |
for 10 dates for last year. |
|
|
|
|
|
|
|
|
City |
|
|
|
|
|
Date |
Birmingham, AL |
Memphis, TN |
Little Rock, AR |
Jackson MS |
|
|
|
|
|
09-Jan |
18 |
20 |
18 |
14 |
|
|
|
|
|
17-Jan |
23 |
31 |
22 |
30 |
|
|
|
|
|
18-Jan |
19 |
25 |
22 |
21 |
|
|
|
|
|
31-Jan |
29 |
36 |
28 |
35 |
|
|
|
|
|
01-Feb |
27 |
31 |
28 |
24 |
|
|
|
|
|
06-Feb |
26 |
31 |
31 |
25 |
|
|
|
|
|
14-Feb |
31 |
24 |
19 |
25 |
|
|
|
|
|
17-Feb |
31 |
31 |
28 |
28 |
|
|
|
|
|
20-Feb |
33 |
35 |
35 |
34 |
|
|
|
|
|
29-Feb |
20 |
42 |
42 |
21 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Use ά= .05 to test any significant difference in the mean peak ozone levels among the four cities |
|