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Question: For Example, explain what the null hypothesis and the alternative hypothesis would be. Then write a sentence answering the probability question on which hypothesis testing is based for the example. The sentence should be of the form: "If [fill in null hypothesis] is true, then the likelihood that fill in event would have happened is fill in likelihood."
Example: Stop the Pain Before It Starts A headline on the CNN website on October 21, 1996, read, "Study: painkillers more effective before surgery than afterward." The article described a University of Pennsylvania research study that was done to test the theory that the most effective pain relief strategy is to stop the pain before it starts.
Use Tinterval on your calculator (press Stat then tests to find the 95% confidence interval. What is the error bound?
The dependent variable was the number of positive adjectives in the paragraph (words such as good, exciting, cheerful). Based on these data, write a conclusion about primacy and recency.
If the distribution of mouth volumes is nearly Normal, what percentage of men and of women should have even larger mouths than these?
the national safety council released the following data on the incidence rates for fatal or lost-work time injuries
Since over 10,000 students in his state took the Math SAT, he can show that the P-value for testing whether the mean score in his state is more than the national average of 480 is less than 0.0001. What we can conclude from this?
considering the distribution of measures on a difficult exam you would expect to find the greatest density of scores.a.
If you plan to study 8 hours per week, what would you predict for your GPA?- If you plan to study 10 hours per week, what would you predict for your GPA?
compare and contrast the mean the median and the mode. which statistic is not as beneficial for extreme scores and
A deck of 52 cards is dealt face up in a row. What is the probability that all 4 aces and all 4 kings are adjacent (but in any order)?
You have been asked to help plan a data collection process to answer the two problem areas. Briefly outline a plan to: Collect qualitative data about how the current services are delivered
Fit a least squares line to the data. -- Plot the data and graph the least squares line as a check on your calculations.
A company claims that on average, when exposed to its toothpaste, 45% of all bacteria related to gingivitis is killed.
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