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If there are repeated independent trials and there are only two outcomes, what distribution should be used?
a. binomial distribution
b. multinomial distribution
c. Poisson distribution
d. hypergeometric distribution
Suppose we wish to test the null hypothesis that there are no differences among the proportion of men and women who developed a rash. Evaluate the P-value of the chi-square test of this hypothesis.
Why do you think it is significant to describe both the measure of central tendency and the measure of dispersion when talking about a data set?
In StaTScan what is the difference between a spatial cluster size to 25% of the population risk and one with 50% window ? In StaTScan what is the difference between space-time permutation and space-time?
Determine the standard error of students that favoured the move.
Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. a) What is the probability that a randomly selected applicant scores between 425 and 575?
A teacher divides her class into two groups. One group is taught a lesson on the computer and the other is taught by traditional lecture. The teacher then gives a test to see that group has better grades.
a) Find the marginal density of Y. b) Find E(X) HINT: What is E (X|Y=y) ?
Suppose you want to conduct a survey of the attitude of psychology graduate students studying clinical psychology toward psychoanalytic methods of psychotherapy.
Solve different inventory control problems using an appropriate OR method.
Calculate the mean number and median number of apples in a bag.
Explain your answer to someone who is familiar with the T test for a single sample, but not with the T test independent means.
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
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