7. use the aggregate() function to compute the sample sizes (ozn), means (ozm), and standard deviations (ozsd) for the control and ozone treatment groups, and then compute the standard errors (ozse) for both groups. make sure the numeric values are visible in your output. copy/paste your r commands and the resulting output into the green box below. (1 point)

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words

You have a small company and want to keep your costs low, but it is important your employees share data. which network would provide you with the most economical solution?

Which of the following calculates the total from the adjacent cell through the first nonnumeric cell by default, using the sum function in its formula? -average -autosum -counta -max