I am asking for help on the final 3 bullets points starting with: "State whether the results..." and ending with "Explain what the results of the test mean, using words other than..." Here is the data and scenario: A biologist believes that the population of rats in a subway tunnel may actually be a new subspecies because they appear to be heavier than those above ground. Here are the statistics, for the weight in ounces, from two samples gathered: Rats in tunnel: Rats above ground: n = 97 n = 76 Mean1 = 29.1 Mean2 = 28.3 S.Dev1 = 2.7 S.Dev2 = 2.4 Does she have have enough evidence to conclude that the subway rats are heavier on average?
I am asking for help on the final 3 bullets points starting with: "State whether the results..." and ending with "Explain what the results of the test mean, using words other than..."
Here is the data and scenario:
A biologist believes that the population of rats in a subway tunnel may actually be a new subspecies because they appear to be heavier than those above ground. Here are the statistics, for the weight in ounces, from two samples gathered:
Rats in tunnel: Rats above ground:
n = 97 n = 76
Mean1 = 29.1 Mean2 = 28.3
S.Dev1 = 2.7 S.Dev2 = 2.4
Does she have have enough evidence to conclude that the subway rats are heavier on average? What is the relationship between this test and the confidence intervals for the two means?
![- For each of the five scenarios that follow, do the following steps in the hypothesis testing process, with
the level of significance a = .05 for each.
. State the null and alternative hypotheses, explaining your thought process.
State which type of test you will do, of the five tests introduced in this week's interactive reading
assignments, and how you know.
• State whether the area you will be interested in, when doing the test, will be to the left, to the right,
or both, and how you know.
. Find the test statistic for the test you determined was appropriate.
. Find the p-value corresponding to the test statistic, given the direction you determined for the area.
Explain what the p-value represents.
State whether the results are or are not statistically significant, explaining in terms of the relationship
between the p-value and a
Explain what the results of the test mean, using the vocabulary of hypothesis testing.
Explain what the results of the test mean, using words other than the vocabulary of hypothesis
testing.
• Answer any other questions which accompany the scenario.
1
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0
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researcher wants to examine whether encouraging students to write about their thought processes
affects student confidence level with mathematical proce
recently completed two math
and one which does not.
asking whether they are or are not confident with mathematical processes. The results of the surveys
are summarized in the following table:
Written
Assignments?
Confident
Not
Confident
Total
US
Dec 9
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