Question
In: Statistics and Probability
The manufacturer of an over-the-counter pain reliever claims that its product brings pain relief to headache...
The manufacturer of an over-the-counter pain reliever claims that its product brings pain relief to headache suffers in less than 3.5 minutes, on average. In order to be able to make this claim in its television advertisements, the manufacturer was required by a particular television network to present statistical evidence in support of the claim. The manufacturer reported that for a sample of 50 headache sufferers, the mean time to relief was 3.3 minutes and the standard deviation was 66 seconds. Use ?=0.05α=0.05.
(a) State null and alternative hypothesis.
(b) Calculate the value of test-statistic.
(c) Obtain the p-value for the test.
(d) Write your conclusion based on the data.
(e) Construct 95% confidence interval for the mean time of pain relief.
PLEASE SHOW DETAILED WORK, thank you :)
Solutions
orchestra answered 2 years agoRelated Solutions
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Number sold
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1
36
6
49
11
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52
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56
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15
57
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develop...
Question 4 A pharmacist has been monitoring sales of a certain over-the-counter pain reliever. Monthly sales...
Question 4
A pharmacist has been monitoring sales of a certain
over-the-counter pain reliever. Monthly sales during the last 15
months were:
Month
Number sold
Month
Number sold
Month
Number sold
1
36
6
49
11
52
2
38
7
50
12
55
3
42
8
49
13
54
4
44
9
52
14
56
5
48
10
48
15
57
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with the heaviest weights applied to the most recent...
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relief is normally distributed with a mean of 25 minutes and a
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(Round your answers to four decimal places.)
(a) at least 33 minutes
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(Round your answers to four decimal places.)
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relief is normally distributed with a mean of 25 minutes and a
standard deviation of 7 minutes. Find the probability that the time
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(Round your answers to four decimal places.)
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__________________________________(2)...
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