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Mathematics, 24.04.2020 16:28 keananashville
The local government is considering implementing a roads and public transport infrastructure upgrade project. Before they commit to this however, they would like to canvas public opinion to gauge community support for such a project. If it they are convinced that more than 60% of the community support the proposed upgrade project, then the government will commission the project. The following sample was collected by asking a randomly selected group of 110 people whether or not they supported the proposed upgrade project.
Survey results:
yes no yes yes yes yes yes yes no yes
yes no yes yes no no no no yes no
yes yes yes no yes no yes yes no yes
yes no yes yes yes yes yes yes no yes
no yes yes yes yes no yes yes yes no
yes no yes no yes no yes yes yes yes
yes yes no yes yes yes yes yes no yes
no yes yes yes yes yes no yes no no
yes no no no yes yes no yes yes no
yes no yes yes no yes yes yes yes yes
no yes no yes yes no no no yes yes
yes yes no no yes yes yes yes no no
The level of significance to be used in the test is α = 0.05.
1. From the following options, select the correct null and alternate hypotheses for this test:
a: H0: p = 0.6, Ha: p < 0.6
b: H0: p = 0.6, Ha: p ? 0.6
c: H0: p = 0.6, Ha: p > 0.6
d: H0: p < 0.6, Ha: p > 0.6
The correct null and alternate hypotheses for this test are
2. Calculate the test statistic (z) for this hypothesis test. Give your answer to 2 decimal places.
3. Therefore, at a significance level of 0.05, the null hypothesis is
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