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Are these fish randomly selected from the entire population of fish of each species and sex? Or is the sample a convenience sample - i.e., the fish closest to the research station that are easiest to catch? In any observational study, you must be careful that the units measured are a proper random sample from the relevant populations. Are the factors to be considered fixed effects? Does it seem reasonable that if you were to repeat the survey, you would select the same sexes and species?
If the names of these 100 people in the building are still unknown but a room is allowed to lodge one tenant at most , then are there how many ways of room occupation?
Use a 5% significance level to test the claim that there appears to be a difference in the effectiveness of the two diets.
Suppose we sample five boys and five girls, and find that the average height of the boys is 0.5 inches more than the average height of the girls.
Draw a tree diagram depicting the sample space outcomes for this experiment.
Testout the significance of the sample correlation also develop regression equation with scatter plot. Calculate chi-square is less than the critical value
Determine the greatest acceleration with which the 1-Mg forklift can raise the 750kg crate withour causing the wheels at B to leave the ground. the centers of mass for the forklift and the crate are located ar G1 and G2 respectively.
Can we conclude, at the level of significance, that the mean lifetime of light bulbs made by this manufacturer differs from months?
A local college requires an English composition course for all freshman. This year they are evaluating a new online version of the course. A random sample of n=16 freshman is selected and the students are placed in the online course.
Assuming the term project is there. Given that he searches on disc 1 but cannot find your thesis, what is the probability that your thesis is on disc i for i = 1,2,3,4.
Use the .05 significance level and the 5 step hypothesis testing process to check if there is a difference in the mean flight times among the three airlines.
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
Almost 20% of the stratum was sampled compared to the second stratum where only 2% of the stratum was sampled. Will this phenomenon introduce bias into the above estimates?
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