Question
In: Math
Pinworm: In Sludge County, a sample of 40 randomly selected citizens were tested for pinworm. Of...
Pinworm: In Sludge County, a sample of 40 randomly selected citizens were tested for pinworm. Of these, 8 tested positive. The CDC reports that the U.S. average pinworm infection rate is 12%. Test the claim that Sludge County has a pinworm infection rate that is greater than the national average. Use a 0.10 significance level.
(a) What is the sample proportion of Sludge County residents with pinworm? Round your answer to 3 decimal places. p̂ =
(b) What is the test statistic? Round your answer to 2 decimal places. zp hat =
(c) What is the P-value of the test statistic? Round your answer to 4 decimal places. P-value =
(d) What is the conclusion regarding the null hypothesis? reject H0 fail to reject H0
(e) Choose the appropriate concluding statement.
The data supports the claim that the infestation rate in Sludge County is greater than the national average.
There is not enough data to support the claim that that the infestation rate in Sludge County is greater than the national average.
We reject the claim that the infestation rate in Sludge County is greater than the national average.
We have proven that the infestation rate in Sludge County is greater than the national average.
Solutions
milcah answered 3 months agoRelated Solutions
Pinworm: In Sludge County, a sample of 40 randomly selected citizens were tested for pinworm. Of...
Pinworm: In Sludge County, a sample of 40
randomly selected citizens were tested for pinworm. Of these, 9
tested positive. The CDC reports that the U.S. average pinworm
infection rate is 12%. Test the claim that Sludge County has a
pinworm infection rate that is greater than the national average.
Use a 0.05 significance level.
(a) What is the sample proportion of Sludge County residents
with pinworm? Round your answer to 3 decimal
places.
p̂ =
(b) What is the...
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Round the final answer to 4 decimal places.)
A nutrition lab tested 40 randomly selected hot dogs to see if their mean sodium content...
A nutrition lab tested 40 randomly selected hot dogs to see if
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A sample of 340 randomly selected people in their 20s were asked
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given in
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Movies Sports game Restaurant Shopping Concert
Total
Men 43 50 46 19 42
200
Women 29 21 31 31 28
140
Total 72 71 77
50 70 340
(a) [1] Give...
A sample of 1000 college students at NC State University were randomly selected for a survey....
A sample of 1000 college students at NC State University were
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The sample proportion is 0.108.
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(Note that due to the randomization of the questions, the
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Answer:
Suppose that 1000 people are randomly selected and tested for a particular disease that is present...
Suppose that 1000 people are randomly selected and tested for a
particular disease that is present in 1.2% of the population.
Assume that the test will perfectly identify the disease
presence/abscence in each tested individual.
For the following, for each numerical response, round your
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In the spreadsheet "Salary Data" you see sample salaries of employees that were randomly selected from...
In the spreadsheet "Salary Data" you see sample salaries of
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Develop the hypotheses and report your conclusion.
Department A
Department B
51000
48000
54000
54000
53000
46000
54000
48000
47000
55000
46000
52000
54000
51000
52000
46000
50000
51000
48000
48000
48000
53000...
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Thirty crew members of this expedition were randomly selected to
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->...
2-Sample Tests: Thirty crew members of this expedition were randomly selected to be studied in each...
2-Sample Tests:
Thirty crew members of this expedition were randomly selected to
be studied in each of three different experiments, for a total of
90 crew members randomly selected. A group of 30 volunteers were
used, for control groups, in each experiment where 2-samples were
used. The goal was to determine if the differences between the
experimental and control groups was sufficiently large enough to
justify further study or action (neurological, psychological, or
physical).
Hypothesis Test 1: Neurological Assessment ->...
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