How is lifespan affected by an individual’s ability to
reproduce?
Reproduction, required for survival of a species, is an
energetically costly endeavor for an individual. Energy gained as
the larval bean beetle feeds on its bean host is used for survival,
growth, and ultimately reproduction after pupation is complete.
Since adult bean beetles do not require food or water following
pupation, energy consumption can be directly correlated with
longevity in the adult.
In addition, lifespan can be affected by the ability of
individuals to successfully reproduce. The metabolism and
physiology of an adult can change with the likelihood that the
adult will find a mate and produce offspring.
In a previous bean beetle experiment, students measured the
lifespan of female bean beetles who were unmated, mated but not
given access to beans, or mated with access to beans.
What is the independent variable? (0.25pts)
Is this variable continuous or discrete/categorical?
(0.25pts)
What is the dependent (response) variable? (0.25pts)
Is this variable continuous or discrete/categorical?
(0.25pts)
What is the students’ hypothesis? (0.75pts)
What would be an appropriate prediction for this study?
(0.75pts)
Is this study an experimental or observational study?
(0.25pts)
What is the sample size in this study? (0.25pts)
In Excel, make a properly formatted graph of the data.Copy and
paste your graph into the space below.Don’t forget to provide a
title for your figure. (1.5pts)
What statistical test is appropriate for these data?
(0.5pts)
Run the statistical test in R Studio.Copy and paste the output
into the space below. (0.5pts)
Write a complete description of the output of the stats test you
ran.You must include the proper statistics from your output to get
full credit. (1.5pts)
group | lifespan | group | lifespan | group | lifespan |
female unmated | 12 | female mated | 7 | female mated with beans | 9 |
female unmated | 7 | female mated | 15 | female mated with beans | 10 |
female unmated | 10 | female mated | 11 | female mated with beans | 10 |
female unmated | 15 | female mated | 15 | female mated with beans | 10 |
female unmated | 10 | female mated | 12 | female mated with beans | 9 |
female unmated | 14 | female mated | 12 | female mated with beans | 11 |
female unmated | 14 | female mated | 13 | female mated with beans | 12 |
female unmated | 15 | female mated | 15 | female mated with beans | 11 |
female unmated | 15 | female mated | 16 | female mated with beans | 11 |
female unmated | 11 | female mated | 22 | female mated with beans | 11 |
female unmated | 10 | female mated | 14 | female mated with beans | 10 |
female unmated | 11 | female mated | 20 | female mated with beans | 13 |
female unmated | 12 | female mated | 25 | female mated with beans | 8 |
female unmated | 13 | female mated | 24 | female mated with beans | 12 |
female unmated | 13 | female mated | 21 | female mated with beans | 11 |
female unmated | 16 | female mated | 25 | female mated with beans | 11 |
female unmated | 12 | female mated | 25 | female mated with beans | 12 |
female unmated | 8 | female mated | 11 | female mated with beans | 8 |
female unmated | 12 | female mated | 24 | female mated with beans | 11 |
female unmated | 12 | female mated | 24 | female mated with beans | 10 |
female unmated | 19 | female mated | 21 | female mated with beans | 9 |
female unmated | 15 | female mated | 26 | female mated with beans | 11 |
female unmated | 19 | female mated | 23 | female mated with beans | 7 |
female unmated | 20 | female mated | 28 | female mated with beans | 7 |
female unmated | 19 | female mated | 6 | female mated with beans | 11 |
female unmated | 19 | female mated | female mated with beans | 12 | |
female unmated | 14 | female mated | female mated with beans | 10 | |
female unmated | 20 | female mated | female mated with beans | 8 | |
female unmated | 18 | female mated | female mated with beans | 11 | |
female unmated | 17 | female mated | female mated with beans | 8 | |
female unmated | 22 | female mated | female mated with beans | 12 | |
female unmated | 17 | female mated | female mated with beans | 8 | |
female unmated | 23 | female mated | female mated with beans | 8 | |
female unmated | 17 | female mated | female mated with beans | 8 | |
female unmated | 21 | female mated | female mated with beans | 13 | |
female unmated | 19 | female mated | female mated with beans | 9 | |
female unmated | 16 | female mated | female mated with beans | 12 | |
female unmated | 24 | female mated | female mated with beans | 7 | |
female unmated | 25 | female mated | female mated with beans | 15 | |
female unmated | 22 | female mated | female mated with beans | 2 | |
female unmated | 23 | female mated | female mated with beans | 6 | |
female unmated | 26 | female mated | female mated with beans | 4 | |
female unmated | 26 | female mated | female mated with beans | 19 | |
female unmated | 27 | female mated | female mated with beans | 10 | |
female unmated | 27 | female mated | female mated with beans | 9 | |
female unmated | 25 | female mated | female mated with beans | 10 | |
female unmated | 19 | female mated | female mated with beans | 17 | |
female unmated | 26 | female mated | female mated with beans | 3 | |
female unmated | 23 | female mated | female mated with beans | 14 | |
female unmated | 29 | female mated | female mated with beans | 12 | |
female unmated | 27 | **minus four escapees the remaining females in this group were still alive when we had to conclude this experiment |
|||
female unmated | 27 |