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BIOL 100 Lab 1: Hypothesis Testing and Statistics
Hypothetical height and speed data for male (M) and female (F) BIOL 100 students.
GENDER
(M/F)
HEIGHT (cm)
SPEED (secs)
M
190
13
M
183
15
M
166
15
M
172
17
M
180
11
M
175
12
M
167
14
M
155
16
M
185
11
M
170
13
M
164
10
M
174
11
M
190
13
F
152
16
F
160
18
F
178
15
F
155
15
F
159
16
F
173
14
F
177
12
F
157
15
F
161
13
F
154
17
F
157
14
F
150
17
F
154
14
HEIGHT (cm)
SPEED (secs)
Male
Male
Female
Mean
174.6923
13.15385
15.07692
S.D.
10.56239
2.154304
1.705947

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1. Explain the difference between an independent variable and a dependent variable.
The variable whose value is free to choose is the independent variable. Dependent
variable is that variable whose value depends on the chosen value of independent
variable through some means of relation.
2. State your hypothesis for the relationship between height and speed. You will find it
useful to frame your hypothesis in the form of “if” and “then” statement. (Note: You
will be graphing this relationship for Question 5 below.)
Height is inversely proportional to speed. In other words, if height increases then
speed decreases.
3. Explain why a statistical analysis is necessary to suggest whether groups differ from
each other. (You may have to do an internet search to properly answer this question.)
Statistical analysis is necessary for inspecting over the data and make some
conclusions or inferences that help us understanding an overall picture of the data. As
for example, A company needs to analyze customer responses over its products by
means of statistical tools. It helps us draw a correlation which further enhances the
quality of service.
4. Using Excel, create an appropriately labeled graph (with an appropriate caption)
comparing height data (means and standard deviations) for male and female UE
college students. See the bar graph on page 8 as a guide for making your graph.
0
20
40
60
80
100
120
140
160
180
200
Males Females
Height(cm)
Height

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BIOL 100 Lab 1: Hypothesis Testing and Statistics Hypothetical height and speed data for male (M) and female (F) BIOL 100 students. GENDER HEIGHT (cm) (M/F) M 190 SPEED (secs) 13 M 183 15 M 166 15 M 172 17 M 180 11 M 175 12 M 167 14 M 155 16 M 185 11 M 170 13 M 164 10 M M 174 190 11 13 F F F F F F F F F F F F F 152 160 178 155 159 173 177 157 161 154 157 150 154 16 18 15 15 16 14 12 15 13 17 14 17 14 HEIGHT (cm) Male Female SPEED (secs) Male Female Mean 174.6923 160.5385 13.15385 15.07692 S.D. 10.56239 9.395171 2.154304 1.705947 1. Explain the difference between an independent variable and a dependent variable. The variable whose value is free to choose is the independent variable. Dependent variable is that variable whose value depends on the chosen value of independent variable through some means of relation. 2. State your hypothesis for ...
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