Question
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
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 65% 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.
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no | yes | yes | yes | yes | yes | no | yes | yes | yes |
yes | yes | yes | no | no | yes | yes | no | no | yes |
yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
no | no | yes | no | yes | yes | no | yes | yes | yes |
yes | no | no | yes | yes | no | yes | yes | no | yes |
yes | no | no | yes | yes | yes | yes | yes | yes | no |
yes | yes | yes | yes | yes | no | yes | no | yes | no |
no | yes | yes | yes | yes | yes | no | yes | yes | yes |
yes | no | yes | yes | yes | yes | yes | yes | no | no |
no | yes | no | no | yes | yes | no | no | yes | yes |
yes | no | yes | yes | yes | yes | yes | yes | yes | no |
The level of significance to be used in the test is = 0.05. You may find thisstandard normal tableuseful throughout this question.
a)From the following options, select the correct null and alternate hypotheses for this test:
A:H0: p = 0.65, Ha: p > 0.65
B:H0: p = 0.65, Ha: p < 0.65
C:H0: p = 0.65, Ha: p 0.65
D:H0: p < 0.65, Ha: p > 0.65
The correct null and alternate hypotheses for this test are:ABCD
b)Calculate the test statistic (z) for this hypothesis test. Give your answer to 2 decimal places.
z =
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