Moneyball وما بعد الاختبارات & الإجابات - كورسيرا

Welcome to an immersive exploration of Moneyball و Beyond, حيث يُحدث اتخاذ القرارات المستنيرة ثورة في عالم الرياضة وخارجه. Discover our engaging quizzes and expert answers that shed light on the revolutionary impact of analytics and innovation in sports management and beyond. These quizzes serve as a gateway to understanding the principles of using data and technology to drive success, inspired by Moneyball’s groundbreaking strategies.

Whether you are a sports enthusiast interested in the intersection of data and sport, or a business professional seeking insights into strategic decision-making, this collection provides valuable insights into the power of analytics to shape results. Join us on a journey of discovery as we explore strategies beyond Moneyball that unlock opportunities for data-driven decision-making and competitive advantage across industries.

لغز 1: أسبوع 1 – Quiz 1

Q1. Which season had the highest median number of team wins?

2000
2003
2002
2001

Q2. مجموع (sum) the number of home team hits for every individual season in the data. Which season did the minimum aggregate home team hit count occur?

1999
2003
2000
2001

Q3. Rank the seasons from highest to lowest average number of at bats for the away teams aggregated over the entire season.

2002, 2000, 2003, 2001, 1999
2001, 2003, 1999, 2002, 2000
2003, 1999, 2000, 2002, 2001
2000, 1999, 2003, 2001, 2002

لغز 2: أسبوع 1 – Quiz 2

Q1. Find the team with the maximum single season WPCT diff in the dataframe. What was this team’s away winning percentage for the season?

.383
.309
.481
.320

Q2. Create a variable AVG Diff = Batting Average For – Batting Average Against. What was the minimum (most negative) single season team AVG Diff in the dataframe?

-.051
-.046
-.033
-.037

Q3. How many teams in the data frame did not play 162 ألعاب?

لغز 3: أسبوع 1 – Quiz 3

Q1. What are the coefficients on batting average for and batting average against in the regression from part 1?

AVGFOR = 3.786
AVGAGN = -4.812
AVGFOR = 3.942
AVGAGN = -4.169
AVGFOR = 3.942
AVGAGN = -4.812
AVGFOR = 3.786
AVGAGN = -4.169

Q2. What is the coefficient for batting average for the restricted regression in part 2?

4.01
4.07
4.04
4.16

Q3. What is the R-squared for the regression in part 1?

72.0%
71.9%
71.8%
71.7%

Q4. What is the Adjusted R-squared for the regression in part 2?

72.0%
72.2%
71.8%
71.6%

أسبوع 2: Moneyball and Beyond Coursera Quiz Answers

لغز 1: أسبوع 2 – Quiz 1

Q1. What was the average player salary in 1999? What was the average player salary in 2006?

1999: $2223975
2006: $3942977
1999: $2590626
2006: $3689305
1999: $2223975
2006: $3942908
1999: $2223975
2006: $3689305

Q2. Calculate the average player OBP and SLG for every season in the timeframe. Which season had the highest average player OBP and what was its value? Which season had the highest average player SLG and what was its value?

Highest avg. OBP: 0.348 (2000)
Highest avg. SLG: 0.443 (2006)
Highest avg. OBP: 0.337 (2003)
Highest avg. SLG: 0.440 (2004)
Highest avg. OBP: 0.349 (1999)
Highest avg. SLG: 0.444 (2000)
Highest avg. OBP: 0.342 (2004)
Highest avg. SLG: 0.444 (1999)

Q3. Sum HR by player across the entire timeframe. What was the highest aggregate home run total over the timeframe 1998-2006?

لغز 2: أسبوع 2 – Quiz 2

Q1. What was the highest paid position on average in 1999? What was the highest paid position on average in 2004?

1999: 1ب, $3014788
2004: OF, $4067223
1999: OF, $3214643
2004: DH, $4067223
1999: OF, $3014788
2004: DH, $4211004
1999: DH, $3214643
2004: 1ب, $4211004

Q2. What percentage of observations in the data set are either flagged as arbitration eligible or free agent eligible?

78.81%
81.24%
80.02%
79.15%

Q3. Sum years of experience by team for 2002. What is the highest and lowest aggregate years of experience for teams in 2002 البيانات?

معظم: 114
Fewest: 36
معظم: 110
Fewest: 37
معظم: 116
Fewest: 39
معظم: 115
Fewest: 38

لغز 3: أسبوع 2 – Quiz 3

Q1. What was the coefficient and corresponding p-value for batting average in regression model 1?

Coefficient: -2.2090
P-value: 0.013
Coefficient: 0.0031
P-value: 0.029
Coefficient: 2.9532
P-value: 0.000
Coefficient: 1.5595
P-value: 0.027

Q2. Comparing the results from the regression model in part 1) and the regression model in part 2), determine the metric (OBP, SLG, or batting average) which appeared to have the greatest increase in determining a player’s salary. What is the difference in coefficient size between the Post-Moneyball period and Pre-Moneyball period for this metric?

5.4668
3.9073
3.1603
2.9302

Q3. Which season had the largest coefficient for each metric (OBP, SLG, and batting average)?

OBP: 2003
SLG: 2004
AVG: 2001
OBP: 2004
SLG: 2005
AVG: 2002
OBP: 2006
SLG: 2003
AVG: 2002
OBP: 2005
SLG: 2002
AVG: 2000

أسبوع 3: Moneyball and Beyond Coursera Quiz Answers

لغز 1: أسبوع 3 – Quiz 1

Q1. What is the highest single season “Eye” measure for a player across all seasons in the data?

0.385
0.391
0.389
0.387

Q2. Calculate the average “ISO” by team for all seasons in the data. What season does the maximum average “ISO” by team value occur in?

2003
1995
2008
1996

Q3. Calculate the median batting average for every season in the data. Which season had the highest median?

1999
2006
2000
1996

لغز 2: أسبوع 3 – Quiz 2

Q1. Determine the season with the largest “ISO” coefficient in each era.

Pre-MB: 2000
Moneyball: 2005
Post-MB: 2011
Pre-MB: 1996
Moneyball: 2001
Post-MB: 2012
Pre-MB: 1995
Moneyball: 2008
Post-MB: 2014
Pre-MB: 1998
Moneyball: 2007
Post-MB: 2013

Q2. How many times is “Eye” significant at the .05 level in each era respectively?

Pre-MB: 1
Moneyball: 2
Post-MB: 3
Pre-MB: 2
Moneyball: 3
Post-MB: 4
Pre-MB: 1
Moneyball: 3
Post-MB: 4
Pre-MB: 0
Moneyball: 1
Post-MB: 1

Q3. What is the largest “AVG” coefficient across all seasons?

7.9516
6.2201
9.3959
7.6219

Q4. Which season has the highest model R-squared across all seasons?

2007
2001
1999
2005

لغز 3: أسبوع 3 – Quiz 3

Q1. How many observations are there in the new dataframe?

2835
2914
2891
2841

Q2. What is the coefficient for AVG in the Post-MB publication period?

2.1509
3.7615
-0.9981
2.981

Q3. What is the Pre-MB*Eye coefficient? How should this be interpreted?

-0.9981
The metric “Eye” was valued significantly less in the Pre-MB period compared to the Post-MB period.
-0.6327
The metric “Eye” was valued less in the Pre-MB period but not significantly different than in the Post-MB period.
-2.4039
The metric “Eye” was valued significantly less in the Pre-MB period compared to the Post-MB period.
-2.4039
The metric “Eye” was valued less in the Pre-MB period but not significantly different than in the Post-MB period.

أسبوع 4: Moneyball and Beyond Coursera Quiz Answers

لغز 1: أسبوع 4 – Quiz 1

Q1. What percent of plate appearances resulted in fly outs in 2017?

10.1%
10.3%
10.7%
10.5%

Q2. How many plate appearances had a starting base state in which the bases were loaded (all bases were occupied)?

4364
4185
4249
4331

Q3. Calculate aggregate strikeouts by player position (هذا هو, aggregate (sum) data at the positional level and not the player level). What was the highest aggregate strikeout total by position?

4417
4399
4374
4317

لغز 2: أسبوع 4 – Quiz 2

Q1. What percent of plate appearances resulted in ground outs in 2016?

18.49%
18.51%
18.39%
18.45%

Q2. How many plate appearances had a starting base state in which at least one base was occupied?

80253
80387
79539
81054

Q3. Calculate aggregate home runs by player position (هذا هو, aggregate (sum) data at the positional level and not the player level). What was the highest aggregate home run total by position?

لغز 3: أسبوع 4 – Quiz 3

Q1. What was the highest player run value in 2017?

67.65
63.04
65.95
62.28

Q2. What was the lowest player run value in 2016?

-33.41
-31.80
-34.04
-32.14

Q3. For each event, calculate the difference in run value between 2017 و 2016 (RV 2017-RV 2016). Which event saw the largest change (in absolute value) من عند 2016 إلى 2017?

Batter Interference
Catcher Interference
Sac Fly DP
Triple Play

Q4. Calculate the difference in player run value between 2017 و 2016 for players that accumulated run values in both seasons. According to this calculation, what was the largest improvement in run value from 2016 إلى 2017?

63.66
60.93
62.41
61.26

أسبوع 5: Moneyball and Beyond Coursera Quiz Answers

لغز 1: أسبوع 5 – Quiz 1

Q1. Which two seasons have the strongest correlation between run values?

2016 & 2017
2015 & 2016
2014 & 2015
2014 & 2016

Q2. Which event has the highest sum of squares value?

Batter Interference
Catcher Interference
Sac Fly DP
Triple Play

Q3. What was the average run value of a “Flyout” in 2014?

-0.2409
-0.2292
-0.2625
-0.2479

لغز 2: أسبوع 5 – Quiz 2

Q1. What was the correlation in player run values between 2014 و 2016?

0.5101
0.4266
0.5461
0.4663

Q2. What is the R-squared for the regression model run in step 4?

0.301
0.308
0.303
0.305

Q3. What is the regression coefficient of RV15 when used as an independent variable in the regression?

0.0472
0.2673
0.3509
0.062

لغز 3: أسبوع 5 – Quiz 3

Q1. What was the correlation in team-run values between 2014 و 2017?

0.0652
0.2618
0.1931
0.3571

Q2. What is the R-squared for the regression model run in step 5?

0.127
0.123
0.130
0.118

Q3. What is the regression coefficient of RV16 when used as an independent variable in the regression?

-0.4437
0.3788
0.0706
-0.0553

Q4. Which independent variable(الصورة) had coefficients that were significant in the player-level regression but insignificant in the team-level regression (في ال .05 significance level)?

RV15
RV15 & RV16
RV16
RV14 & RV15