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How to do multiple regression using Excel and the Megastat plugin. Students are given step-by-step instructions on how to use the MegaStat plugin for Excel and told why Excel's Data Analysis Toolpak isn't reliable for rigorous statistical analysis. Attachments include example spreadsheets, a video tutorial, and some brief textbook material.
Store used ANOVA to test if mean sales for each credit card were equal. What are the degrees of freedom for F statistic?
At 0.01 significance level is it sensible to conclude that modification reduced number of traffic accidents?
Twenty air samples were obtained and the carbon monoxide concentrations were recorded. the results in ppm (parts per million) were:
Finding the value of test statistic utilizing two-tail 't' test also interpret the result. The Commercial Bank as well as Trust Company is studying the use of its automatic teller machines.
There is some concern that exposure to gases used in anesthesiology might be harming health of anesthesiologists. In one study of 525 Michigan nurse anesthesiologists, 10 reported a new malignancy other than skin cancer during the previous year.
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
Conclude whether the given conditions justify using the methods of this section when testing a claim about a population mean µ.
Iindicate all samples are approximately Normal with no outliers. Is the ANOVA appropriate?
Problem based on combinatory - how many different license plates are possible?
Suppose that about 48% of all infants are girls. The maternity ward at a large hospital handles 1000 deliveries per year. A smaller hospital in the same city records about 50 deliveries per year. At which hospital is it more likely that between 46..
Determine the mean number of times the machine was used per day.
Which of the following statements regarding the coefficient of correlation is true. A value of 0.00 indicates two variables are not related.
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