Question
In: Statistics and Probability
For each test below, follow the following steps. (1) state the hypotheses, (2) formulate an analysis...
For each test below, follow the following steps.
(1) state the hypotheses,
(2) formulate an analysis plan
(3) analyze sample data
(4) interpret the results
You may use the TI-83 to calculate the test statistic and p-value,
but be sure you indicate which test you are using.
|
Test II – Test a New Drug Suppose the Acme Drug Company develops a new drug, designed to prevent colds. The company states that the drug is equally effective for men and women. To test this claim, they choose a simple random sample of 100 women and 200 men from a population of 100,000 volunteers. At the end of the study, 38% of the women caught a cold; and 51% of the men caught a cold. Based on these findings, |
|
can we reject the company's claim that the drug is equally effective for men and women? Use a 0.05 level of significance. |
Solutions
Expert Solution
The output is
From the output, test statistic Z = -2.1276
P-value = 0.033
Since p-value is less than level of significance 0.05, we reject null hypthesis and conclude that
Drug is not equally effective for men and women
orchestra answered 2 years agoRelated Solutions
For each test below, follow the following steps. (1) state the hypotheses, (2) formulate an analysis...
For each test below, follow the following steps.
(1) state the hypotheses,
(2) formulate an analysis plan
(3) analyze sample data
(4) interpret the results
You may use the TI-83 to calculate the test statistic and p-value,
but be sure you indicate which test you are using.
Test III – Test a New Drug (Part 2)
Suppose the Acme Drug Company develops a new drug, designed to
prevent colds. The company states that the drug is more effective
for women...
For each test below, follow the following steps. (1) state the hypotheses, (2) formulate an analysis...
For each test below, follow the following steps. (1) state the
hypotheses, (2) formulate an analysis plan (3) analyze sample data
(4) interpret the results You may use the TI-83 to calculate the
test statistic and p-value, but be sure you indicate which test you
are using.
Test III – Test a New Drug (Part 2) Suppose the Acme Drug
Company develops a new drug, designed to prevent colds. The company
states that the drug is more effective for women...
For each problem, follow these steps. State the hypotheses and identify the claim. Find the critical...
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Make the decision.
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Position eliminated 30.0%
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For each problem, follow these steps. State the hypotheses and identify the claim. Find the critical...
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18
20
16
11
17
27
19
15
17
20
18
17...
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Find the critical values(s).
Compute the test value.
Make the decision.
Summarize the results.
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41
87
89
38
75
35
36
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Step 1: Establish null and
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Step 3: Calculate t critical using critical t
– table
Step 4: Calculate the Sum of Square deviation
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Step 5: Calculate t obtained
Step 6: Specify the critical value and the obtained
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