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Psychologist is interested in studying women who are in the process of obtaining a divorce to determine whether there are significant attitudinal changes after the divorce has been finalized. Existing records from the geographic area in question show that 798 couples have recently filed for divorce. Assume a sample of 25 women is needed for the study. What type/s of method/s of random selection can you use to determine which women should be asked to participate in the study?
The Graduate Management Admission Council, who administers the test, claims that the mean total score is 529. Suppose a random sample of 8 students took the test, and their scores are given below. 699, 560, 414, 570, 521, 663, 727, 413 Use α = .05..
Differentiate between the levels of measurement by providing an example of data which can be transformed from one level of measurement to another and another example of data that cannot be transformed.
A study was conducted to determine whether there were significant differences between medical students admitted through special programs (such as affirmative action) and medical students admitted through regular criteria.
Formulate and solve a 0-1 integer linear program model that can be used to find the minimum number of locations necessary to provide coverage to all areas. Clearly indicate your linear program model.
USA Today reported on preferred types of office communication by different age groups. Suppose the results were based on a survey of 500 respondents in each age group.
Test whether the mean rate is less than 6%. Use P-value approach.
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Critically illustrate out the aim and obejectives of factor analysis? Critically illustrate out the aim and obejectives of Cluster analysis? Critically illustrate out the aim and obejectives of Multidimensional analysis?
What does r 2 of .73 tell us? Is this a strong or weak correlation? How can you tell?
Suppose that you're charged with comparing results of standardized tests from four different school districts. What statistical technique would you choose to use?
Assign probabilities to the sample points and then find the probability that the first envelope purchased contains less than $100.
A histogram of time spent eating & drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating & drinking each day.
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