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A psychologist theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high numbers indicate greater ability) are given in the following table. Using the .05 level, do the results support the psychologist’s theory?

48. What kind of hypothesis test will you use to analyze this dataset?

What kind of hypothesis test will you use to analyze this dataset?

7 students randomly select one topic among A, B and C topics for a homework. What is the probabilitythat topic A is selected by exactly 2 students?

26. What is the relationship between power and Type 2 error rate?

Assume that the bacteria, which you are interested in studying, is unculturable in the lab environment. Could you still experimentally determine the presence of this becterial genus in an environmental sample (e.g. in a soil sample)? How? Explain how you may establish an uncultured organisms evoluntionary relationship to other organisms on a 16S rRNA phylogenetic tree. What would be the limitations of this approach?

What are an examples of unculturable bacteria?

Compute ??G xdS where G is the surface of that portion of the cylinder x2+z2=16 inside the cylinder x2+y2=16 in the first octant