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Suppose you want to conduct a chi-square test of independence and Fisher's exact test for the relationship between two dichotomous variables. The first variable, named TREAT, is coded 0 for control group members and 1 for treatment group members. The second variable, named POSTSMOKE, indicates smoking status assessed one month after the intervention being evaluated; it is coded 0 for participants who were not smoking, and 1 for participants who were smoking, at that time. What SPSS syntax would you use to obtain these hypothesis tests?
Gerald takes the ACT mathematics test and scores 23. ACT math scores are Normally distributed with mean 22.4 and standard deviation 4.2. Find the standardized scores for both students.
The Boston Red Sox play their spring training games in JetBlue Park, Fort Myers, Florida. Suppose a game against the Tampa Bay Rays is selected.- Classify each of the following random variables as discrete or continuous.
Find the 95% confidence interval of the mean number of ER patients treated each day at the hospital.
Sick cars. Twenty percent of cars that are inspected have faulty pollution control systems. The cost of repairing a pollution control system exceeds $100.
a. What type of error would you make if the null hypothesis is actually false and you fail to reject it?
find the normal approximation for the binomial probability that x 5 where n 12 and p 0.3. compare this probability
The sample showed an average of 56.2 miles per gallon with a standard deviation of 5 miles per gallon. With a 0.05 level of significance, do you accept or reject the manufacturer's claim.
In a sample of 1200 U.S. adults, 186 dine out at a restaurant more than once per week. Two U.S. adults are selected at random from the population
Write an essay on descriptive statistics. Start by jotting down from memory things you could include. Review Chapters 2-6, adding to your list additional facts or other considerations. Draft the essay. Rest. Revise it
A contractor has estimated that the minimum number of days to remodel a bathroom for a client is 10 days. He also estimates that 80% of similar jobs are completed within 18 days. If the remodeling time is uniformly distributed, what should be the ..
Consider the spread of Christianity in Europe from the viewpoint of those seeking to introduce the new religion.
A University of Omaha is concerned that out of state students may be receiving lower grades than in state students. Two independent random samples have been selected: 165 observations from population 1 (Out of state students) and 177 from population ..
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