The mean game scores and standard deviations of four seasons of a football team are given below. Season Mean Standard Deviation

Question

storchak [24]

3 years ago

15

The mean game scores and standard deviations of four seasons of a football team are given below. Season Mean Standard Deviation

2005 19 3.5 2006 21 2.8 2007 12 1.0 2008 9 4.0 Which statement must be true?

Mathematics

2 answers:

shusha [124] · Answer 1 · 2022-04-05T04:45:37+03:00

shusha [124]3 years ago

8 0

D.The game scores of season 2005 have a greater spread than the game scores of season 2006

timurjin [86] · Answer 2 · 2022-04-05T02:16:45+03:00

To find the margin of error, multiply the z-score by the standard deviation, then divide by the square root of the sample size.The z*-score for a 90% confidence level is 1.645.The margin of error is 0.20.The confidence interval is 48.3 to 48.7.48.8 is not within the confidence interval.