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Political scientists want to estimate the proportion of republicans and democrats in each of the 50 states. They take a random sample of 500 individuals from each state. What sampling did they use? Cluster, Stratified, Simple random, or Convenience?
Statistics and Probability, Statistics
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How do you solve the following problem: Consider the experiment of drawing two cards from a deck in which all picture cards have been removed and adding their values with ace = 1. What is the probability of obtaining a t ...
Suppose A and B are collectively exhaustive. In addition, P(A) = 0.2 and P(B) = 0.8. Suppose C and D are both mutually exclusive and collectively exhaustive. Further, P(C|A) = 0.7 and P(D|B) = 0.5. What are P(C) and P(D) ...
A business analyst in the Washington, D.C. area looked at the following Christmas 2016 and 2017 toy sales in Metro D.C. Six toy stores were were contacted and shared the following information where x is 2016 sales and y ...
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A recent study reported that the prevalence of hyperlipidemia is 30% in children 2 to 6 years of age. If 12 children are analyzed what is the probability that at least 3 are hyperlipidemic?
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Your bank has $153 million in loan commitments which are now being drawn upon. You aren't sure, but you are beginning to think that the bank may have some problems now. What sort of risk are you connected about, and how ...
A population has a mean μ=79 and a standard deviation σ=24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=248 μx= ?Simplify your? answer. σx= rounded to three decimal ...
Can you look for multicollinearity between a categorical independent variable and a continuous dependent variable or can you only look for multicollinearity between a continuous independent variable and a continuous depe ...
What is the annual coupon rate of a 7-year corporate bond given that its current price is $930, par = 1,000, semi-annual coupon, YTM=10%?
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