5.7 EXERCISES 365 Subject Before After Subject Before 1 .68 After .73 2 11 .64 .65 .62 .72 12 .68 .59 .66 .60 13 .82 .78 .92 78 21 5 14 15 .58 .67 .65 .66 .68 .87 6 .80 .68 16 7 ub 76 72 .77 .77 17 8 .61 .65 n .72 70 18 .86 om 10 .84 .86 to .88 19 .74 .73 .72 e, 79 20 .88 .97 Does alcohol affect reaction time? 2. A grocer wishes to see whether the median number of items bought on each sale could be considered to be 10, so he observes 12 customers at the checkout counter. Number of Items Number Customer Customer of Items 1 22 7 15 2 26 33 S. 4 47 A ET 8.0 5 10 8 1 4.E 16 31 11 6 7 12 6.07 301 A1 Can the Wilcoxon test be used? Which assumptions of the model are violated in this problem? Test the data of Example 3.5.3 to see if there is a tendency for the observations in the 3. year. second year to be less than the observations in the first 4. Each member of a girls' basketball team was given a brief warm-up period and then told to shoot 25 free throws. The number X of goals was recorded. Then the team was given an extensive workout and, after a brief rest period, was told to shoot another 25 free throws each. The number Y of successful attempts was again recorded. Do the data indicate that the percentages tend to drop when the players are tired? Player 7 8 9 10 11 12 4 5 6 18 12 7 21 19 14 8 11 19 16 8 11 8 13 9 8 8 5 2 1 X (before) Yi (after) iwollo 16 10 8 23 13 10 A candidate for political office realizes that she will maximize her vote-getting ability if she adopts themedian position of her constituents. Therefore she devises a questionnaire and distributes it to 15 voters (who hopefully resemble a random sample). The results of he questionnaire are scored from one extreme (0) to the other (10). 5. LO O 838%
5.7 EXERCISES 365 Subject Before After Subject Before 1 .68 After .73 2 11 .64 .65 .62 .72 12 .68 .59 .66 .60 13 .82 .78 .92 78 21 5 14 15 .58 .67 .65 .66 .68 .87 6 .80 .68 16 7 ub 76 72 .77 .77 17 8 .61 .65 n .72 70 18 .86 om 10 .84 .86 to .88 19 .74 .73 .72 e, 79 20 .88 .97 Does alcohol affect reaction time? 2. A grocer wishes to see whether the median number of items bought on each sale could be considered to be 10, so he observes 12 customers at the checkout counter. Number of Items Number Customer Customer of Items 1 22 7 15 2 26 33 S. 4 47 A ET 8.0 5 10 8 1 4.E 16 31 11 6 7 12 6.07 301 A1 Can the Wilcoxon test be used? Which assumptions of the model are violated in this problem? Test the data of Example 3.5.3 to see if there is a tendency for the observations in the 3. year. second year to be less than the observations in the first 4. Each member of a girls' basketball team was given a brief warm-up period and then told to shoot 25 free throws. The number X of goals was recorded. Then the team was given an extensive workout and, after a brief rest period, was told to shoot another 25 free throws each. The number Y of successful attempts was again recorded. Do the data indicate that the percentages tend to drop when the players are tired? Player 7 8 9 10 11 12 4 5 6 18 12 7 21 19 14 8 11 19 16 8 11 8 13 9 8 8 5 2 1 X (before) Yi (after) iwollo 16 10 8 23 13 10 A candidate for political office realizes that she will maximize her vote-getting ability if she adopts themedian position of her constituents. Therefore she devises a questionnaire and distributes it to 15 voters (who hopefully resemble a random sample). The results of he questionnaire are scored from one extreme (0) to the other (10). 5. LO O 838%
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
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Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Question 4 in images
Transcribed Image Text:5.7 EXERCISES
365
Subject Before
After
Subject Before
1
.68
After
.73
2
11
.64
.65
.62
.72
12
.68
.59
.66
.60
13
.82
.78
.92
78
21
5
14
15
.58
.67
.65
.66
.68
.87
6
.80
.68
16
7
ub
76
72
.77
.77
17
8
.61
.65
n
.72
70
18
.86
om
10
.84
.86
to
.88
19
.74
.73
.72
e,
79
20
.88
.97
Does alcohol affect reaction time?
2. A grocer wishes to see whether the median number of items bought on each sale could
be considered to be 10, so he observes 12 customers at the checkout counter.
Number
of Items
Number
Customer
Customer
of Items
1
22
7
15
2
26
33
S.
4
47
A
ET
8.0
5
10
8
1
4.E
16
31
11
6
7
12
6.07
301 A1
Can the Wilcoxon test be used? Which assumptions of the model are violated in this
problem?
Test the data of Example 3.5.3 to see if there is a tendency for the observations in the
3.
year.
second year to be less than the observations in the first
4. Each member of a girls' basketball team was given a brief warm-up period and then told
to shoot 25 free throws. The number X of goals was recorded. Then the team was given
an extensive workout and, after a brief rest period, was told to shoot another 25 free throws
each. The number Y of successful attempts was again recorded. Do the data indicate that
the percentages tend to drop when the players are tired?
Player
7 8 9 10 11 12
4 5 6
18 12 7 21 19 14 8 11 19 16 8 11
8 13 9 8 8 5
2
1
X (before)
Yi (after)
iwollo
16 10 8 23 13 10
A candidate for political office realizes that she will maximize her vote-getting ability if
she adopts themedian position of her constituents. Therefore she devises a questionnaire
and distributes it to 15 voters (who hopefully resemble a random sample). The results of
he questionnaire are scored from one extreme (0) to the other (10).
5.
LO O
838%
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