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A physician was interested in comparing the effects of six different antihistamines in persons extremely sensitive to a ragweed skin allergy test. To do this, a random sample of ten allergy patients was selected from the physician's private practice, with treatments (antihistamines) assigned to each patient according to the experimental design shown in the following table. Each person then received injections of the assigned antihistamines in different sections of the right arm. The area of redness surrounding the point of injection was measured after a fixed period of time. The data are shown in the table.
a. Identify the design.
b. Identify the characteristics of the design.
c. Run an analysis of variance. Use a = 05.
Describe in your own words the difference between a means objective and a fundamental objective. Why do we focus on coming up with attribute scales that measure accom plishment of fundamental objectives, but not means objectives? What good does it..
Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is different from the claimed value of 22minutes?
Classify above data into a grouped frequency distribution of 4-classes and draw a histogram for the above data. Identify the type of histogram.
for a population having a mean of 10 and a variance of 30 find the probability that a sample size of 9 taken at random
womens heights are normally distributed with mean 63.7 in and standard deviation of 2.5 in. a social organization for
Which of these potential polling places would most likely result in a reasonable approximation to the desired proportion? Why...?
The passing grade such that the probability of passing a student who guesses on every question is less than 0.10. What score should be set as the lowest passing grade?
The length of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. How many days do 80 percent of women last until in their birthing process?
Yet in the city as a whole, about 29%of the eligible jurors were women. Let p denote the probability that a juror drawn by the judge is a woman. Then to test the judge’s fairness in selecting women, what null hypothesis should be? What alternative hy..
Draw a histogram showing the 20 sample means. (Use classes -0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5 and so on). Describe the distribution of the x-bars that you see in part b (shape of distribution, center, and the amount of dispersion).
What is the mean of the sampling distribution of the (sample proportion) and what is the standard deviation of the and describe the sampling distribution of p
At the 0.01 level of significance, that the mean lifetime of light bulbs made by this manufacturer differs from 49 months? Perform a two-tailed test.
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