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A die is loaded in such a way that the probability of a given number turning up is proportional to that number (for instance, a 4 is twice as probable as a 2). (i) What is the probability of rolling a 5, given that an odd number turns up. (ii) What is the probability of rolling an even number, given that a number less than 5 turns up.
Jet Lag Drug A recent study was conducted to determine whether the drug Nuvigil was effective at helping east-bound jet passengers adjust to jet lag.
The sample mean life is 5.5 years with a standard deviation of 0.6 years. If you were constructing a 99% two-sided confidence interval estimate, the lower limit would be?
Pilot sample of 30 items indicates a sample standard deviation of 900. Determine the required sample size if the confidence level is 90%.
Answer these questions- Discuss examples of research questions that might be appropriately analyzed using a 2-way ANOVA. How does using a 2-way ANOVA extend our understanding of the effects of factors on dependent variables
Describe how a block experiment could be done in this situation. Be specific about how blocks would be formed and how weight-training methods would be assigned.
Write a short report that includes an introduction, a conclusion paragraph and a body which answers fully the two questions posed in the problem - Comparing the preceding probabilities, which areas seem strongest and weakest in terms of the amount..
That is, P(µ-σ ≤ X ≤ µ+σ) = .68 if X has a normal distribution. For non-normal distributions, is it safe to assume that this probability is again 0.68? Explain your answer.
Gender differences in dream content are well documented (Winget & kramer, 1979). Suppose a researcher studies aggression content in the dreams of men and women.
Suppose the sample mean is x‾ = 4.014. Should the process be stopped?- Suppose the sample mean is x‾ = 3.979. Should the process be stopped?
The positive correlation between health and income per capita is one of the best-known relations in international development.
Serum cholesterol levels were taken from a population of 10,000 college students. The results were normally distributed. Males had a mean of 195 and a standard deviation of 10. Females had a mean of 185 and a standard deviation of 12.
Compute mean and standard deviation for sample of N = 8 females and sample of N = 8 for males.
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