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Homework 9 | Complete Solution
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- In order to estimate the proportion of women over 50 who have annual mammograms with a 95% confidence interval to within 0.05, how many women must you interview? Assume that you estimate the proportion might be 0.6.
- Resource-selection analysis compares the distributions of animals relative to the distribution of habitat. If the two don’t agree, there is evidence of selection. A survey of 106 moose found that 24 were located in “In burn – interior,” 22 in “In burn – edge,” 20 in “Out of burn – edge,” and 40 in “Other” habitat types. The corresponding proportion of the landscape as determined by a Geographic Information System (GIS) in these habitats was 0.340, 0.101, 0.104, and 0.455 respectively.
- What is the null and alternative hypothesis?
- Complete the chi-square GOF table
|
Categories |
In burn-interior |
In burn-edge |
Out of burn |
other |
|
observation(expectation) |
|
|
|
|
- Find the chi-square term for the “Other” category.
- Find the chi-square statistic.
- Find the p-value of the test.
- Refer to question 2, consider and complete the following directional test: the proportion of “other” is lower than 45.5%.
- Define the hypothesis.
- Complete the chi-square GOF table
|
Categories |
“other” |
“non-other” |
|
observation(expectation) |
|
|
- Find the chi-square term for the “Other” category.
- (This is unique procedure for directional test only) Check whether the sample proportion is consistent with Ha.
- Find the chi-square statistic.
- Find the p-value of the test.
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[Solved] Homework 9 | Complete Solution
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- Submitted On 03 Apr, 2015 09:53:28
Answer posted by
- HomeworkExp
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Here, p=0.6; ME = 0.05 and Z value = Z0.025=1.96
So required sa...
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