Date - Math @ McMaster University
... 4. Which of the following would produce a confidence interval with a smaller margin of error than the 90% confidence interval? A) Plant only five plots rather than 25, because five are easier to manage and control. B) Plant 10 plots rather than 25, because a smaller sample size will result in a sma ...
... 4. Which of the following would produce a confidence interval with a smaller margin of error than the 90% confidence interval? A) Plant only five plots rather than 25, because five are easier to manage and control. B) Plant 10 plots rather than 25, because a smaller sample size will result in a sma ...
Statistics In-Class Assignment Name: Wherever possible, write the
... 3) Joe and Josephine travel together by car to work. Joe says the mean time to get to work is 23.0 minutes, while Josephine says that it is 20.5 minutes. Suggest a reason for the discrepancy. Use sample numbers if it helps to explain your reason. ...
... 3) Joe and Josephine travel together by car to work. Joe says the mean time to get to work is 23.0 minutes, while Josephine says that it is 20.5 minutes. Suggest a reason for the discrepancy. Use sample numbers if it helps to explain your reason. ...
Chapter 3: Displaying and summarizing quantitative data p52 The
... major peaks, called modes? A distribution with one major peak is called unimodal. - •Is it approx. symmetric or skewed in one ...
... major peaks, called modes? A distribution with one major peak is called unimodal. - •Is it approx. symmetric or skewed in one ...
Anatomy of the histogram
... from the average. Very few will be more than two or three SD’s away. ...
... from the average. Very few will be more than two or three SD’s away. ...
Study Guide for Final Exam
... convincing evidence that the mean number of words recalled after 1 hour will, in general, exceed the mean number of words recalled after 24 hours? (Hint: These are paired data; analyze the differences.) Write a clear, complete sentence to summarize your findings. What do you conclude? What assumptio ...
... convincing evidence that the mean number of words recalled after 1 hour will, in general, exceed the mean number of words recalled after 24 hours? (Hint: These are paired data; analyze the differences.) Write a clear, complete sentence to summarize your findings. What do you conclude? What assumptio ...
Quizch21_key
... Suppose a 95% confidence interval for the difference in test scores between Class 1 and Class 2 (in that order) is the following: 9 +/− 2. These results were based on independent samples of size 100 from each class. 18. {Classes 1 and 2 narrative} What can you conclude? a. You are confident that the ...
... Suppose a 95% confidence interval for the difference in test scores between Class 1 and Class 2 (in that order) is the following: 9 +/− 2. These results were based on independent samples of size 100 from each class. 18. {Classes 1 and 2 narrative} What can you conclude? a. You are confident that the ...
µ - Statistics
... Contrasts are not always readily available in statistical software packages (when they are, you need to assign the coefficients “ai”), or may be limited to comparing each sample to a control. If your software doesn’t provide an option for contrasts, you can test your contrast hypothesis with a regul ...
... Contrasts are not always readily available in statistical software packages (when they are, you need to assign the coefficients “ai”), or may be limited to comparing each sample to a control. If your software doesn’t provide an option for contrasts, you can test your contrast hypothesis with a regul ...