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When a researcher tests at the ,p=.05,p=.01 or p=.001 levels they can only be used in relationship to evaluate risk to patients in implementing the decisions based on research findings. If the value is lower than that you don't use it. It is significant enough to be something you don't want to use.
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
If the alpha level is changed from a = .05 to a = .01, (a) What happens to the boundaries for the critical regions? (b) What happens to the probability of a type I error?
Please identify a research question that can be addressed with a hypothesis test. An example might be to identify the presence of bacteria in a batch of milk.
Find the indicated percentage for the normally distributed variable. Round your answer to two decimal places, if necessary.
Solve x^2 = -2 where x is a real number. Simplify your answer as much as possible.
State the multiple regression equation. Interpret the meaning of the slopes in the equation. Predict the salary for a 40-year-old male employee with 5 years of experience.
30% of college freshmen support increased military spending. If 12 college freshmen are randomly selected, find the probability that more than 5 selected students support increased military spending.
Why is sampling strategy important? Please provide one or two examples from your work or past experience?
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
How many individuals will it need to sample to achieve this level of accuracy and confidence?
A comparison group consisted of 5,055 children who had received no such treatment (brothers and sisters of the children who had received radiation treatment).
If battery posts are larger than 3.5 centimeters or less than 3.30 centimeters, they will be scrapped. Determine the proportion scrapped?
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