Part 1 of 4Suppose that you randomly survey death records for people born in 1900 in Louisiana andcompared the life span of two different ethnicities. Of the 109 individuals sampled from ethnicity 1,the mean life span was 45.5 years with a standard deviation of 18.2 years. Of the 105 individualssampled from ethnicity 2, the mean life span was 44.9 years with a standard deviation of 11.4 years.Conduct a hypothesis test with a 10% level of significance to see if the mean life spans in Louisianawere the same for the two ethnicities.Step 1: State the null and alternative hypotheses.Ho: H1 – H2= VHa: µ1 - 2 vv test.)(So we will be performing a two-tailedPart 2 of 4Step 2: Assuming the null hypothesis is true, determine the features of the distribution of thedifferences of sample means.with distribution meanThe differences of sample means are t-distributedand distribution standard deviationQuestion Help: D Post to forum

Name: Part 1 of 4Suppose that you randomly survey death records for people
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Description: Part 1 of 4Suppose that you randomly survey death records for people born in 1900 in Louisiana andcompared the life span of two different ethnicities. Of the 109 individuals sampled from ethnicity 1,the mean life span was 45.5 years with a standard

Given that n1=109x1=45.5S1=18.2n2=105x2=44.9S2=11.4 1) We want to test the hypothesis that there is…

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Part 1 of 4
Suppose that you randomly survey death records for people born in 1900 in Louisiana and
compared the life span of two different ethnicities. Of the 109 individuals sampled from ethnicity 1,
the mean life span was 45.5 years with a standard deviation of 18.2 years. Of the 105 individuals
sampled from ethnicity 2, the mean life span was 44.9 years with a standard deviation of 11.4 years.
Conduct a hypothesis test with a 10% level of significance to see if the mean life spans in Louisiana
were the same for the two ethnicities.
Step 1: State the null and alternative hypotheses.
Ho: H1 – H2
= V
Ha: µ1 - 2 v
v test.)
(So we will be performing a two-tailed
Part 2 of 4
Step 2: Assuming the null hypothesis is true, determine the features of the distribution of the
differences of sample means.
with distribution mean
The differences of sample means are t-distributed
and distribution standard deviation
Question Help: D Post to forum

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