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The two windows that provide the basic interface for SPSS are the data window and the output window. Why do you believe it is important to be able to freely move from window to window when creating your database?
The president of an agency specializing in public opinion surveys claims that approximately 70% of all people to whom the agency sends questionnaires responds by filling out an returning the questionnaire.
If the mean number of serious accidents per year in a large factory (where the number of employees remains constant) is five, find the probability that in the current year there will be:
The following table presents the scores of 15 states on three variables. Compute r and r2 for each combination of variables.
There are 4 entrances to a building in Philadelphia. The bldg maintenance super would like to know if the entrances are equally utilized. To investigate, 400 people were observed entering the building.
In Excel or Word, create a frequency distribution and a graph depicting the data below. Then, write up an interpretation of the data - what does this data tell us
A standard deviation contest. This is a standard deviation contest. You must choose four numbers from the whole numbers 0 to 20, with repeats allowed.
In teaching the role of statistical application in Health Science, the importance of reliable and valid data is very critical in research process.
what is an independent sample? what is a related sample? when must researchers use different hypothesis tests for
The lives of many people are affected by a fear that prevents them from flying. The Marist Institute for Public Opinion conducted a poll of 1014 adults
1. For a normal population with a known variance, suppose that an investigator believe that approximately 95% values are between 38 and 70. The appropriate sample size for estimating the true population mean μ within 2 units with 95% confidence le..
Let x indicate the number of pairs of shoes produced. Develop a mathematical model for the total cost of producing x pair of shoes.
At the 0.05 level, can we conclude that the population of husbands and wives do not spend equally in this purchase category?
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