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We flip a fair coin 10 times. what is the conditional probability of getting 10 heads, given that the number of heads is at least 8?
Perform exploratory data analysis on all variables in the data set. Realizing that you have six groups, be sure that your exploratory analysis is broken down by group. When possible, include appropriate graphs to help illustrate the dataset.
A major issue facing many states is whether to legalize casino gambling. Suppose the govenor of one state believes that more than 55% of the state's registered voters would favor some form of legal casino gambling.
a researcher is interested in finding out if college-bound high school students tend to smoke cigarettes less than high
A pizza restaurant manager claims that the average home delivery time for their pizza is no more than 20 minutes.
Compute the population attributable risk for smoking and lung cancer.
a single bolt is selected at random from 10000. three different kinds of defects a b and c are known to occur in these
1000 tickets for prizes are sold for $2 each. Seven prizes will be awarded - one for $400, one for $200, and five for $50. Steven purchases one of the tickets.
Perform a posthoc test that is suitable if we assume that group 7 is a control group and that the other are different treatment groups and that we are only interested in finding significant treatments, not to compare them.
testing the difference between two means.bull what two assumptions must be met when you are using the z test to test
1. a multiple regression line was calculated in which x1 was a students grade point average and x2 was a students age.
the monthly starting salaries of students who receive an mba degree have a population standard deviation of 110. what
She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?
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