Activity Gina is playing dominoes with her family. She and her brother, Greg, are playing as a team (team A) against their parents (team B). The table
shows how many points the two teams have scored in each round. Gina is keeping track of the scores and wants to know which measures of
center and spread best represent each team's data.
Team A Team B
15
20
20
15
15
25
5
30
10
20
15
25
10
0
15
15
5
25
20
30

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables