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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 role of the F test in multiple regression? (b) How is the F statistic calculated from the ANOVA table? (c) Why are tables rarely needed for the F test?
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
Given a situation where a control chart with 3-sigma limits is being constructed to monitor the percentage of defective items produced by a process, if samples of 100 units each are taken from the process and the average percent defective found in..
A sample of waterfall heights in Hawaii show that the average height is 261.5 feet with a standard deviation of 13.76 feet.
If the computer manufacturer decides to sample 2,300 of the microchips received in each shipment, what acceptance number, c, would they want?
If there are 20 people in the room, 12 men and 8 women, what is the probability of picking two people, without replacement, getting a woman on the first and a man on the second?
Basically trying to figure out once you get the test statistics how you determine critical value through the Table chart. Trying to find critical value for test statistics of 2.36 with 10 subjects, 7 had higher scores, 2 had lower scores, and 1 sco..
For each problem, compute a Welch F-statistic and determine whether or not significant differences exist among the treatment conditions.
All subjects in the study were questioned about lifestyle factors including alcohol, tea, and coffee consumption. The resulting data are as follows.
Nut problem: Manager claims 336g and a population standard deviation of 11g. We sample 64 bags and find
The probability Mary will receive an A in a class is 0.62. Assuming independence, if she is taking 5 classes this semester, calculate the probability she will receive exactly 3 A's.
Both objective and subjective criteria should be used to determine whether a process is in control. Do you agree or disagree?
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