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Question: A researcher wants to test a new memory performance supplement that has shown some promise in primate studies where subjects were given the supplement followed by the task of identifying pictures of other animals three days later. The dependent variable was measured by the number of pictures correctly identified. The researchers noticed that while there was a positive correlation between the group given the supplement and number of correctly identified pictures as compared to the control group, they also notice that there seemed to be some variation between the males and females of the primates. Additionally, two different amounts of the drug have been proposed for consideration. Therefore, in the current study, the researchers want to divide the subject primates (N=60) by gender (male: n=30; female: n=30), and give them a 10 mg dose in one treatment condition, and a 25 mg dose in the other treatment condition. To do this, they are dividing each group of males and females in half, and randomly assigning them to either the 10 mg or the 25 mg groups. Therefore, they have developed a 2 x 2 factorial design with different participants in each cell. Using this information, design this study using a factorial ANOVA design and answer the following questions.
Using the information in the supplement scenario, write your three omnibus research questions (RQ1, RQ2, RQ3).
Use the? P-value method. Use the normal distribution as an approximation of the binomial distribution.
Do you think they can be solved explicitly? Take the derivative of the gamma distribution and set it equal to zero and solve for alpha and beta to find the mle?
Determine kas a function of µ such that ƒ is the probability density function of a random variable X. What is the distribution function of X?3- If we define Y=X-λ/µ. What is the distribution of Y?
questions involve the random variable x with probability distribution given below. please show all
You like to consume and enjoy things. However, like many people but you prefer to purchase and consume as much as you can while working
Violence and lack of discipline have become major problems in schools in the US.
??How do I test this hypothesis at the .07 significance level using the p-value method? I need to include the null and alternative hypothesis, alpha value then
The following 4 questions (Q1 to Q4) are based on the following information:You and your friends have decided to go to The Kentucky Derby. There are 12 horses inthe race. How many ways can the horses come in first, second, or third?
Suppose a random sample of 5 families had the following income and savings:
Suppose among 312 large city residents sampled, 65 refused to cooperate. What is the margin of error at the 95% confidence level.
1. The counselor calculates the unbiased estimate of the population's variance to be 15. What is the variance of the distribution of means?
Suppose T1, T2, · · · , Tn are i.i.d. W(?, p) and data are noninformatively right censored (i.e., we observe (Ui , di) for i = 1, 2, . . . , n).
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