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In the prior presidential election, the average voter turnout in Miami was 57%. You think this will change in the next presidential election. Which is the alternative hypothesis?
suppose the service time in minutes at a bank has the exponential distribution with lambda 12. use the central limit
A study was completed that examined the relationship between coffee consumption and level of stress for a group of 50 undergraduate students. The correlation was .373, and it was a two-tailed test, done at the .01 level of significance.
consider a small self-service car wash that has cars arriving with exponentially distributed inter arrival times at a
Analyze and support whether you believe that the changes recommended are statistically valid and sound enough to make practice changes in a hospital for the two papers listed below. Also in your answer please touch on the following items
Let f be a measurable function from X onto S where (X, A) is a mea- surable space and (S, e) is a metric space with Borel σ-algebra. Let T be a subset of S with discrete relative topology (all subsets of T are open in T ). Show that there is a mea..
Use Excel to estimate a simple regression model with happiness as the response variable and age as the explanatory variable.
a survery of magizine subcribers showed that 45.8 percent rented a car during the past 12 months for business reasons.
You have two investments that either make money or lose money. Each one has a 60 percent chance of making money, and a forty percent chance of losing money.
a. What is the sample space? Hint: One outcome looks like (A, 1). What are the others?
Let Z be a standard normal random variable. Use the calculator provided to determine the value of c such that P(-c lesser than or equal to Z lesser than or equal to c)= 0.9534
In the 1970s, computers (even minicomputers) were very expensive. Since no one had their own computer, people had to share. Compared to today, computers in the 1970s were slow, with limited memory and storage facilities.
You do not need to collect data and actually conduct the test calculations. Rather,state the claim, define the null and alternate hypotheses, identify the test significance and the test statistic, and state the decision rule that will be used.
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