Box plots
53,13,23,39,13, 34
What is the Minimum?
What is
13
Do players in the NBA, especially large players like Shaquille O’Neal, have a greater ABILITY to score when they are rested? The graph at right shows Shaq’s distribution of points scored in his 12 games with no rest (meaning he played in a game the day before) and his 41 games where he had at least 1 day’s rest during the 2009-10 regular season.
State the Null hypotheses we are interested in testing
What is
Shaq had the SAME ABILITY to score after at least one days rest and after no rest
Duke University in Durham, North Carolina, plays its home games at Cameron Indoor Stadium. Their men’s basketball team won the NCAA championship in 2010.Their zealous fans are called the “Cameron Crazies”. Do those fans help the Blue Devils play better defense?Here are the points allowed by the Duke men’s basketball team at home and on the road for 2009-10
Points allowed at home:
53 59 70 56 67 56 55 50
Points allowed on road:
71 88 47 63 54 74 49 79
Simulate using note cards
What is
Get 16 cards write the scores on the cards. Shuffle divide into 2 piles for home and the road. Calculate new test statistic and REPEAT.
Does resting between sets help athletes who are weight training to lift more weight? An experiment was conducted in which 50 members of a varsity football team were each randomly assigned to one of two treatments. In both treatments, subjects were asked to bench press 75% of their maximum bench press weight. The first treatment was sets of 10 reps with a 5-minute rest in between sets. The second treatment was sets of 10 reps with a 2-minute rest in between sets. Each athlete continued to do sets until exhaustion and then the total number of reps was recorded.
What are the Explanatory Variables
What is
the length of rest period
(2 minutes or 5 minutes).
What do we do if our p-value is 2%
What is
We reject Ho and can rule out random chance . They had a greater ability...
53,13,23,39,13, 34
What is the maximum
What is 53
State the Null Hypotheses we are interested in testing
Duke University in Durham, North Carolina, plays its home games at Cameron Indoor Stadium. Their men’s basketball team won the NCAA championship in 2010.Their zealous fans are called the “Cameron Crazies”. Do those fans help the Blue Devils play better defense?
What is
duke has the same ability to prevent scoring at home and away
Here are Adam Vinateri's field goal kicks
Home Road Total
Made 266 237 503
Missed 43 52 95
Total 309 289 598
What is
Have 598 Cards. Write made on 503 write miss on 95. Shuffle into 2 piles for home and away. Calculate new test statistic. REPEAT
Does resting between sets help athletes who are weight training to lift more weight? An experiment was conducted in which 50 members of a varsity football team were each randomly assigned to one of two treatments. In both treatments, subjects were asked to bench press 75% of their maximum bench press weight. The first treatment was sets of 10 reps with a 5-minute rest in between sets. The second treatment was sets of 10 reps with a 2-minute rest in between sets. Each athlete continued to do sets until exhaustion and then the total number of reps was recorded.
What are the Response Variables
What is
the number of repetitions completed
What do we do if our p-value is 98%
What is
We fail to reject Ho and can not rule out random chance . They had the same ability...
What is the median of this set of numbers:
41 22 29 36 37
45 45 39 26 43
What is
38
State the Alternative Hypotheses we are interested in testing
Duke University in Durham, North Carolina, plays its home games at Cameron Indoor Stadium. Their men’s basketball team won the NCAA championship in 2010.Their zealous fans are called the “Cameron Crazies”. Do those fans help the Blue Devils play better defense?
What is
duke has a greater ability to prevent scoring at home than on the road
How many simulations do we use in SRIS applets?
What is
100
Does resting between sets help athletes who are weight training to lift more weight? An experiment was conducted in which 50 members of a varsity football team were each randomly assigned to one of two treatments. In both treatments, subjects were asked to bench press 75% of their maximum bench press weight. The first treatment was sets of 10 reps with a 5-minute rest in between sets. The second treatment was sets of 10 reps with a 2-minute rest in between sets. Each athlete continued to do sets until exhaustion and then the total number of reps was recorded.
How was randomization used
What is
the athletes were randomly assigned to one of the treatments
In a hypothesis test, if the p-value is really small, what are you likely to reject?
What is
Ho
What is the IQR of this set of numbers:
41 22 29 36 37
45 45 39 26 43
what is.
14
In 2004 the Boston Red Sox won baseball’s World Series for the first time since 1918. Did their team that year have a greater ABILITY to score runs at home? Here are dotplots summarizing their 81 PERFORMANCES at home (H) and their 81 PERFORMANCES on the road (R) during the 2004 regular season.
State the Alternative Hypotheses we are interested in testing
What is
The 2004 Red Sox had a greater ability to score runs at home and on the road
What happens to our flag in SRIS applet if we have a negative test statistic.
What is
it should point to the left
In our experiment the class did at the basketball court, What was the explanatory variables?
What is
shooting with noise and no noise
What kind of error have we made if we reject Ho
What is
a type 1 error.
We said that they had a greater ability but in reality, they had the same ability...
Identify any outliers
41 22 29 36 37
45 45 39 26 43
What is
None
Do players in the NBA, especially large players like Shaquille O’Neal, have a greater ABILITY to score when they are rested? The graph at right shows Shaq’s distribution of points scored in his 12 games with no rest (meaning he played in a game the day before) and his 41 games where he had at least 1 day’s rest during the 2009-10 regular season.
State the Alternative hypotheses we are interested in testing
What is
Shaq had a LESSER ABILITY to score after at least one days rest than after no rest
In sports such as tennis, players often think it makes a difference which side of the court they are on. Suppose that in a particular match, Kathy wins 22 of the 37 points when facing away from the sun but only 11 of the 35 points when facing the sun.
What is
Have 72 Cards. Write wins on 33 write loss on 39. Shuffle into 2 piles for sun and no sun. Calculate new test statistic. REPEAT
In our experiment the class did at the basketball court, What did we control?
What is
the court, the ball, the weather.....
What kind of error have we made if we fail to reject Ho
What is
a type 2 error.
We said that they had the same ability but in reality, they had a greater ability...