Listed above are the summary statistics for the daily high temperatures (in degrees F) for the month
of September in a Midwestern U.S. city. One particular day has a z -score of 0.70. What was the
likely temperature that day?
A. 68
B. 70
C. 74
D. 76
E. 80
- In American football, the running back carries the football forward in a quest to score points. Many
people create fantasy football teams by selecting players as their “team.” These fans analyze data to
judge which players are outstanding. The following regression output analyzes the linear
relationship between the number of times a running back is given the football (carries) and the total
number of yards that player gains in a season for a random sample of 18 running backs.
The appropriate calculation for a 99% confidence interval for the slope of the least squares
regression line for the total yards gained versus number of carries in a season for all running backs
is
A. 4.3441 ± 2.576.(1.811)/
B. 4.3441 ± 2.921.(1.811)
C. 4.3441 ± 2.921.(1.811)/
D. 4.3441 ± 2.898.(1.811)
E. 4.3441 ± 2.898.(1.811)/