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?
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