Data transformation
... The raw data have a very skew distribution and the small number of very large ulcers might lead to problems in analysis. Although the log transformed data are still skew, the skewness is much less and the data much easier to analyze ...
... The raw data have a very skew distribution and the small number of very large ulcers might lead to problems in analysis. Although the log transformed data are still skew, the skewness is much less and the data much easier to analyze ...
Lab_1_Descriptive_Statistics - The Evergreen State College
... introducing what you think the game theoretical idea behind the four questions might be, a main body where you use statistics to illustrate or support some point you are making, and a concluding paragraph where you state your main “findings”. You should include graphs in your paper to make direct co ...
... introducing what you think the game theoretical idea behind the four questions might be, a main body where you use statistics to illustrate or support some point you are making, and a concluding paragraph where you state your main “findings”. You should include graphs in your paper to make direct co ...
7.4 Estimating a Population Mean
... Because we do not know the value of the population standard deviation, we use the sample stamndard deviation instead. This introduces another source of unreliability, especially with small samples. In order to maintain a desired confidence level such as 95%, we compensate for this additional unrelia ...
... Because we do not know the value of the population standard deviation, we use the sample stamndard deviation instead. This introduces another source of unreliability, especially with small samples. In order to maintain a desired confidence level such as 95%, we compensate for this additional unrelia ...
Scientific Investigation: Statistical Analysis
... can easily appreciate the value of measurement. Numerical data extend our capacity for judgment too. Since a stream runs muddier after a rain and clearer in periods of drought, how could you possibly wade into two streams in different seasons and hope to develop a valid comparison? In a world charac ...
... can easily appreciate the value of measurement. Numerical data extend our capacity for judgment too. Since a stream runs muddier after a rain and clearer in periods of drought, how could you possibly wade into two streams in different seasons and hope to develop a valid comparison? In a world charac ...
homework1
... a. What are the null and alternative hypotheses for this test? b. What is the value of the t-statistic? c. Is there a test of equal variances here? Why not? d. What is the p-value? What do you conclude? 13. Do this same paired t-test separately for those who ran and those who did not run. Use a BY s ...
... a. What are the null and alternative hypotheses for this test? b. What is the value of the t-statistic? c. Is there a test of equal variances here? Why not? d. What is the p-value? What do you conclude? 13. Do this same paired t-test separately for those who ran and those who did not run. Use a BY s ...
Chapter 1: Scientific Methods
... Bar graphs are useful for graphing non-continuous data, such as data from different experimental groups. Note that in each case, the dependent variable is on the yaxis and the independent variable on the x-axis, and ...
... Bar graphs are useful for graphing non-continuous data, such as data from different experimental groups. Note that in each case, the dependent variable is on the yaxis and the independent variable on the x-axis, and ...
