Mathematics, 24.03.2021 16:50 Boris1002
In Major League Baseball, the American League (AL) allows a designated hitter (DH) to bat in place of the pitcher, but in the National League (NL), the pitcher has to bat. However, when an AL team is the visiting team for a game against an NL team, the AL team must abide by the home team's rules, and thus, the pitcher must bat. A researcher is curious if an AL team would score more runs for games in which the DH was used. She samples 20 games for an AL team for which the DH was used, and 20 games for which there was no DH. The data are below. The population standard deviation for runs scored is known to be 2.49 for both groups. Assume the populations are normally distributed.
DH no DH
0 3
6 6
8 2
2 4
2 0
4 5
7 7
7 6
6 1
5 8
1 12
1 4
5 6
4 3
4 4
2 0
7 5
11 2
10 1
0 4
Required:
a. Is there evidence to suggest that more runs are scored in games for which the DH is used? Use α=0.10.
b. Can it be concluded that more runs are scored in games for which the DH is used?
Answers: 3
Mathematics, 21.06.2019 16:30
Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?
Answers: 3
Mathematics, 21.06.2019 16:50
The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left
Answers: 1
Mathematics, 21.06.2019 22:00
Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?
Answers: 1
In Major League Baseball, the American League (AL) allows a designated hitter (DH) to bat in place o...
History, 20.04.2020 21:59
Mathematics, 20.04.2020 21:59
Mathematics, 20.04.2020 21:59
English, 20.04.2020 21:59
Mathematics, 20.04.2020 21:59
Mathematics, 20.04.2020 22:00
Chemistry, 20.04.2020 22:00
Mathematics, 20.04.2020 22:00
Mathematics, 20.04.2020 22:00