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Langewitz, Izakovic, and Wyler (2005) reported that self-hypnosis can significantly reduce hay fever symptoms. Patients with moderate to severe allergic reactions were trained to focus their minds on specific locations where their allergies do not bother them, such as a beach or a ski resort. In a sample of 64 patients who received this training, suppose that 47 showed reduced allergic reactions and 17 showed an increase in allergic reactions. Are these results sufficient to conclude that the self-hypnosis has a significant effect? Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use alpha = .05
Graph one shows a number of observations that all are directly on trend line that moves from the top left of the graph to the bottom right.
Are number of toilet breaks and amount of beverage consumed related? Describe how? Provide the value of statistic and probability value.
In a paragraph explain the differences between the Independent Samples and Paired Samples T-Test. When do you use each? Purpose a research question that could be addressed using each test
Beta and required rate of return stock has required return of 11%; risk-free rate is 7%t; and market risk premium is 4 %. Determine the stock's beta?
Critically illustrate out the range? What is the arithmetic mean income? What is the population variance?
The 95% confidence interval for the mean of the sampling distribution of the mean is about:
Population of consumers where 30% of them favored a new product and 70% of them disliked it. If 20 persons are sampled, what are the probabilities of finding: Binomial
The number of degrees of freedom for the appropriate chi-square distribution in a test of independence is:
A pair of dice is tossed once. Let X denote the sum of the face values, and let Y denote the absolute value of the difference between the face values.
The winning team's score in 13 high school basketball games was recorded. If the sample mean is 54.3 points and the sample standard deviation is 11.0 points, find the 98% confidence interval of the true mean.
The CEO of the business has nothing better to do wheras measured the temperatures of 26 department managers 1 to 4 times every day to get a total of 123 measurements.
What happens to the Maximum Error of Estimate as the sample size gets larger?
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