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Question: An advertisement for Claritin, a drug for seasonal nasal allergies, made this claim: "Clear relief without drowsiness. In studies, the incidence of drowsiness was similar to placebo" (Time, February 6, 1995, p. 43). The advertisement also reported that 8% of the 1926 Claritin takers and 6% of the 2545 placebo takers reported drowsiness as a side effect. A one-sided test of whether a higher proportion of Claritin takers than placebo takers would experience drowsiness in the population results in a p-value of about .005.
a. From this information, would you conclude that the incidence of drowsiness for the Claritin takers is statistically significantly higher than for the placebo takers?
b. Does the answer to part (a) contradict the statement in the advertisement that the "incidence of drowsiness was similar to placebo"? Explain.
c. Use this example to discuss the importance of making the distinction between the common use and the statistical use of the word significant.
The information that the distribution of the serve speeds was bell shaped. What proportion of the player's serves are expected to be between 107 mph and 118 mph?
1.The demand for Carolina Industries product varies greatly from month to month. Based on the past two years of data, the following probability distribution shows the company's monthly demand:
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An education task force looking at poverty levels in the United States has collected data for each state and the District of Columbia on the total number of people below the poverty level and the number of adults over the age of 25 who did not g..
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two points are randomly on a line of length 14 so as to be on opposite sides of the midpoint of the line. in other
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Is sample of 25 papers large adequate to give a good estimate of mean score of all 42,000 students on this exam problem? Explain your answer.
Use a real world scenario to explain why it makes sense the variation decreases as the sample size increases.
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