Question
In: Statistics and Probability
The following data represent the difference in scores between the winning and losing teams in a...
The following data represent the difference in scores between the winning and losing teams in a sample of 30 college football bowl games from 2018-2019. Point Difference Number of Bowl Games 1 - 5 4 6 - 10 4 11 - 15 9 16 - 20 4 21 - 25 3 26 - 30 5 31 - 35 1 (a) Find the mean, median, mode and standard deviation. [9 marks] (b) Calculate the Coefficient of Variation and Pearson’s 1st and 2nd Coefficient of Skewness. [4 marks] (c) Describe the shape of the above data with explanation. [3 marks] (d) From a random sample of 100 college football bowls games picked in 2018-2019, estimate the number of college football games that have point difference between 8 and 17 using the frequency distribution table provided. [5 marks] (e) Using the frequency distribution table provided, estimate the maximum point difference for which 60% of the bowl games in 2018-2019 fell under. [4 marks]
Solutions
orchestra answered 2 years agoRelated Solutions
Is there a difference between the average NBA Championship Final game winning scores of the 1970’s...
Is there a difference between the
average NBA Championship Final game winning scores of the 1970’s
versus the average of the winning scores of the 1990’s? Use a 0.05
significance level to test the claim that there is a
difference.
1970’s
1990’s
97
78
105
87
109
90
87
87
96
113
102
90
102
99
114
97
118
108
113
92
Write each statement:
null hypothesis):
alternative hypothesis):
Write the “test statistic” here:
Write the P-value here:
REJECT YES...
9) (CH. 9-2) Is there a difference between the average NBA Championship Final game winning scores...
9) (CH. 9-2) Is
there a difference between the average NBA Championship Final game
winning scores of the 1970’s versus the average of the winning
scores of the 2000’s? Use a 0.01 significance level to test the
claim that there is a difference.
1970’s
2000’s
97
99
105
131
109
83
87
95
96
81
102
100
102
88
114
113
118
108
113
116
Use the data from problem #9 to construct a 99% confidence
interval estimate for the...
Winning team data were collected for teams in different sports, with the results given in the...
Winning team data were collected for teams in
different sports, with the results given in the table below. Use
the TI-83/84 Plus results at a
0.050.05
level of significance to test the claim that home/visitor wins are
independent of the sport.
TI-83/84 PLUS
chi squared minus Testχ2−Test
chi squared equals 3.076409776χ2=3.076409776
Upper P equals 0.3799936722P=0.3799936722
df equals 3df=3
BasketballBasketball
Baseball
Hockey
Football
Home team winsHome team wins
111111
6767
5454
4141
Visiting team winsVisiting team wins
7474
5656
4343
4343...
1. The following data represent the scores on a test for 36 students in a Sociology...
1. The following data represent the scores on a test for 36
students in a Sociology class, followed by a stem plot for the
data.
65 76 83 81 74 78 41 57 82 50 90 81 63 68 80 85 76 73 79 48 80 75
72 70 75 74 94 87 81 78 64 83 77 72 79 86
4 1 8 5 0 7 6 3 4 5 8 7 0 2 2 3 4 4 5...
3) In the data from the first problem, one of the scores of a winning team...
3) In the data from the first problem, one of the scores of a
winning team was 131 points. Use what you learned in CH. 3-2, plus
the calculated mean and standard deviation, to answer the following
question: Is 131 points an unusual score for this group of data?
Why or why not? Support your answer by telling me what you did to
come to your conclusion. Calculated MEAN (round to the nearest
whole number):
FREQUENCY DISTRIBUTION TABLE
CLASSES
FREQUENCIES...
The data below represent scores from three different therapies used to treat depressive symptoms. Scores represent...
The data below represent scores from three different therapies
used to treat depressive symptoms. Scores represent depressive
symptoms on a scale of 1-10, with higher scores indicating greater
depressive symptoms.
Treatment 1
Treatment 2
Treatment 3
0
1
4
0
4
3
G = 24
0
1
6
ΣX2 = 92
2
0
3
_______
T1 = 2
T2 = 6
T3 = 16
SS1 = 3
SS2 = 9
SS3 = 6
a. SST is what?
b. SSW is...
The following data represent the Intelligence Quotient Scores of a random sample of thirty adults. ...
The following data represent the Intelligence Quotient Scores of
a random sample of thirty adults. Construct a Stem-and-Leaf Plot
AND a Five Number Summary for the measurements. Compute the
locator of the median, the median, AND the mean of the thirty
measurements. Sample of Size n = 30 108 100 103 125 108 90 122 89
96 99 100 84 121 129 91 103 90 106 75 98 102 89 99 82 90 100 120
114 93 104
The following data represent exam scores in a statistics class taught using traditional lecture and a...
The following data represent exam scores in a statistics class
taught using traditional lecture and a class taught using a
"flipped" classroom. Complete parts (a) through (c) below.
Traditional
71.071.0
69.969.9
80.580.5
67.567.5
84.384.3
77.677.6
57.057.0
82.582.5
81.281.2
70.970.9
64.364.3
70.370.3
60.160.1
Flipped
76.776.7
71.771.7
64.064.0
72.672.6
77.577.5
90.990.9
79.879.8
77.277.2
81.681.6
69.269.2
92.592.5
77.777.7
75.775.7
(a) Which course has more dispersion in exam scores using the
range as the measure of dispersion?
The traditional course has a range of...
The following data represent exam scores in a statistics class taught using traditional lecture and a...
The following data represent exam scores in a statistics class
taught using traditional lecture and a class taught using a
"flipped" classroom. Complete parts (a) through (c) below.
Traditional 71.7 69.2 78.7 68.1 84.1 78.5 56.9 81.0 82.0 72.3
63.7 69.0 60.5
Flipped 76.8 72.0 64.0 73.0 78.8 92.5 79.2 77.4 81.8 71.2 91.4
78.5 75.9
(a) Which course has more dispersion in exam scores using the
range as the measure of dispersion? The traditional course has a
range of...
The following data represent the final exam scores of 18 male students and 18 female students....
The following data represent the final exam scores of 18 male
students and 18 female students.
Male: 68, 68, 72, 73, 65, 74, 73, 72, 68, 65, 73, 66, 71, 68, 74,
66, 71, 65
Female: 59, 75, 70, 56, 66, 75, 68, 75, 62, 60, 73, 61, 75, 74, 58,
60, 73, 58
Is there any significant difference between the average exam scores
of male and female students?
Explain your answer
using both confidence interval method and hypothesis test...
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