This course is designed to acquaint the student with the principles of descriptive and inferential statistics. Topics will include: types of data, frequency distributions and histograms, measures of central tendency, measures of variation, probability, probability distributions including binomial, normal probability and student's t distributions, standard scores, confidence intervals, hypothesis testing, correlation, and linear regression analysis. This course is open to any student interested in general statistics and it will include applications pertaining to students majoring in athletic training, pre-nursing and business.
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An editorial criticized a chart caption that described a dental floss as one that "reduces the chance of plaque on teeth by over 400 percent."
What is wrong with this statement?
The x-values in the table to the right are the nicotine amounts (in mg) in different 100 mm filtered, non-"light" menthol cigarettes. The y-values are the nicotine amounts (in mg) in different king-size nonfiltered, nonmenthol, and non-"light" cigarettes.
If suitable methods of statistics are used, it can be concluded that the average (mean) nicotine amount of the 100 mm filtered, non-"light" menthol cigarettes is less than the average (mean) nicotine amount of the king-size nonfiltered, nonmenthol, and non-"light" cigarettes.
Can it be concluded that the first type of cigarette is safe? Why or why not?