Question

Peach Tree University (PTU) coaches want to know if Victorville
University's (VU's) offensive line weighs different than their
offensive line. The weight of randomly selected offensive line
players from each team are below. What can the coaches conclude
with α = 0.01?

PTU | VU |
---|---|

309 297 310 285 295 |
321 312 310 308 309 |

**a)** What is the appropriate test statistic?

---Select--- na z-test One-Sample t-test Independent-Samples t-test
Related-Samples t-test

**b)**

Condition 1:

---Select--- VU Offensive Line PTU Offensive Line team players the
coaches weight

Condition 2:

---Select--- VU Offensive Line PTU Offensive Line team players the
coaches weight

**c)** Compute the appropriate test statistic(s) to
make a decision about *H*_{0}.

(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)

critical value = ; test statistic =

Decision: ---Select--- Reject H0 Fail to reject H0

Answer #1

Peach Tree University (PTU) coaches want to know if Victorville
University's (VU's) offensive line weighs different than their
offensive line. The weight of randomly selected offensive line
players from each team are below. What can the coaches conclude
with α = 0.01?
PTU
VU
309
297
310
285
295
321
312
310
308
309
If appropriate, compute the CI. If not appropriate, input "na"
for both spaces below.
[ , ]
e) Compute the corresponding effect size(s) and
indicate magnitude(s).
If not...

Researchers hypothesize that a new oral contraceptive will
produce weight gain. In a study, healthy females were weighed (lb)
at the beginning of a course of the new oral contraceptive. They
were reweighed at 3 months. What can the researchers conclude with
an α of 0.01? The data are below.
initial weight
3-month weight
140
117
137
130
140
158
147
145
141
140
150
119
144
141
144
163
146
145
151
144
a) What is the appropriate test...

A study was conducted using undergraduates at a rural university
who volunteered to participate in the research as partial
fulfillment of a course requirement. One of the items studied was
the amount of alcohol consumed (in drinks) in any one day for the
past month. Administrators want to know if there are differences in
alcohol consumption between freshmen and juniors. Based on the
information in the table below, what can be concluded with α =
0.05?
freshmen
juniors
1 =...

Boys of a certain age in the nation have an average weight of 86
with a standard deviation of 9.6 lb. A complaint is made that boys
are overfed in a municipal children's home. As evidence, a sample
of 29 boys of the given age is taken from the children's home with
an average weight of 85.14 lb. What can be concluded with α =
0.01?
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test...

Children of a certain age in the nation have an average weight
of 86 with a variance of 92.16 lb. A complaint is made that
children are overfed fed in a municipal children's home. As
evidence, a sample of 24 children of the given age is taken from
the children's home with an average weight of 89.65 lb. What can be
concluded with an α of 0.05?
a) What is the appropriate test statistic?
---Select one--- (na, z-test, one-sample t-test,...

Administrators want to know the effectiveness of the Orange
Grove Elementary reading program. The average reading comprehension
score is 22 for children of comparative age. The data below are
reading comprehension scores from a sample of children from Orange
Grove Elementary. Scores range from 0 - 40 with higher scores
indicating better reading comprehension. What can be concluded with
α = 0.05?
id
reading
35
36
37
38
39
40
41
42
43
44
45
10
11
12
13
14...

A national organization ran an advertising campaign designed to
convince people to quit smoking. To evaluate their campaign, they
had subjects record the average number of cigarettes smoked per day
in the week before and one week after exposure to the ad. What can
be concluded with α = 0.05. The data are below.
before
after
35
17
12
29
18
19
27
26
16
41
46
17
21
34
31
20
34
26
27
41
a) What is the...

A national organization ran an advertising campaign designed to
convince people to quit smoking. To evaluate their campaign, they
had subjects record the average number of cigarettes smoked per day
in the week before and three weeks after exposure to the ad. What
can be concluded with α = 0.05. The data are below.
before
after
46
17
21
34
31
20
34
26
27
41
35
17
12
29
29
19
27
26
16
41
a) What is the...

A doctor hypothesizes that females have higher systolic blood
pressure than males. The doctor obtains the blood pressure from a
sample of patients during their annual check-up. Below is the
systolic blood pressure for the sample. What can be concluded with
α = 0.05?
male
female
106
119
98
105
100
132
109
113
98
105
137
105
119
115
127
122
131
124
111
136
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test...

The Board of Trustees believe that test anxiety is increased by
the time spent in college. After completing their sophomore year, a
random sample of students was selected and given the College Test
Anxiety Questionnaire (CTAQ). After completing their senior year
they were again tested. What can be conclude with α =
0.05?
sophomore
senior
5.9
7.2
7.4
6.8
8.5
6.2
6.1
5.2
2.1
7.5
3.2
6.3
5.5
6.4
4.6
5.2
a) What is the appropriate test statistic?
---Select: na,...

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