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Q1: Suppose two fair six-sided dice are tossed and the random variable X is used to represent the sum of the numbers shown by the dice. Compute E [X|X>6] and Var [X|X>6].
Q2: The random variable X is binomial with n =75, p=0.04 while Y is binomial with n = 100, p=0.04, and Z is binomial with n=50, p=0.04. Let W = X+Y+Z. Compute E[W], Var[W], and Pr[W>2].
The distribution of bladder volume in women is approximately N(400,75) in milliliters. Find the proportion of women's bladders with a volume between 500 and 600m.
Compare and contrast quantitative and qualitative research designs. Identify and discuss some advantages and disadvantages for each type of research.
Explain why the sequence is important. What might happen if the hypothesis test is performed before the researcher has decided on the significance level?
What is the approximate probability that the combined weight of 25 items exceeds 445 ounces? What theorem is useful in answering this question?
A sample of 100 orders revealed that 82 were delivered within the promised time. At the .10 significance level, can we conclude that less than 90 percent of the orders are delivered in less than 10 minutes?
Construct the following confidence intervals for your data set:
on a multiple choice test of 13 questions each question has four 4 possible answers one of which is correct. for
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Compute the standard error of the proportion.
What is the probability that a randomly selected monthly cell phone bill is more than $100?
Set up a hypothesis test to validate this claim. Using a significance level of .01 to test this hypothesis, what is your decision rule
A rental agent claims that the mean monthly rent,u, for apartments on the east side of town is less than$725 . A random sample of 13 monthly rents for apartments on the east side has a mean of$714
Test the hypothesis that no difference exists between the groups at α = .05 and perform and report all related tests and statistics.
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