Solve given Inferences involving two populations Inference about two Population Proportions: Independent Samples: A government housing agency is compa

remolatg

remolatg

Answered question

2020-12-05

Solve given Inferences involving two populations Inference about two Population Proportions:
Independent Samples:
A government housing agency is comparing home ownership rates among several immigrant groups. In a sample of 235 families who emigrated to the U.S. from Eastern Europe five years ago, 165 now own homes. In a sample of 195 families who emigrated to the U.S. from Pacific islands five years ago, 125 now own homes.

Answer & Explanation

Layton

Layton

Skilled2020-12-06Added 89 answers

p1: Proportion of families who emigrated to the U.S. from Eastern Europe five years ago
p2: Proportion of families who emigrated to the U.S. from Pacific islands five years ago
Null hypothesis: H0:p1=p2
Sample 1: emigrated to the U.S. from Eastern Europe five years ago
Number families who emigrated to the U.S. from Eastern Europe five years ago: n1=235
Number families who now own homes: x1=165
Proportion of families who emigrated to the U.S. from Eastern Europe five years ago :small widep^1=0.7021
Sample 2: emigrated to the U.S. from Pacific islands five years ago
Number families who emigrated to the U.S. from Pacific islands five years ago: n2=195
Number families who now own homes: x2=125
Sample proportion of families who emigrated to the U.S. from Pacific islands five years ago: small widep^2=125195=0.641
Test Statistic: Z=p^1  p^2p^1 (1p^1)n1 + p^2 (1p^2)n2
Test Statistic: Z=0.7021  0.6410.7021(10.7021)235 + 0.641(10.641)195 = 0.06110.0455 = 1.3429
For two failed test:
PValue = P(Z < Zstat) + P(Z > Zstat)
=2× P(Z<1.3429)=2× 0.0897=0.1794
p-value = 0.1794
α = 0.05
As P-Value i.e. is greater than Level of significance i.e (Pvalue:0.1794>0.01:Level of significance), Fail to Reject Null Hypothesis
There is not sufficient evidence to conclude that there is a significant difference in home ownership rates in the two groups of immigrants.

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