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One measure of the effectiveness of cancer drugs is their ability to reduce the number of viable cancer cells in laboratory settings. In this experiment, the A549 line of malignant cells is plated onto petri dishes with various concentrations of the drug cisplatin. After 7 days of incubation, half the petri dishes at each dose are treated with a dye, and the number of viable cell colonies per 500 mm2 is determined as a response for all petri dishes (after Figure 1 of Alley, Uhl, and Lieber 1982). The dye is supposed to make the counting machinery more specific to the cancer cells.
Analyze these data for the effects of concentration and dye. What can you say about interaction?
Markland Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals.
Many people find the calculations tedious or complex and most companies offering annuities also offer calculators to see the effects of your proposed investment. An example is given here.
The FINAL research proposal will consist of the following items: 1. A business research topic. Strengthen and improve initial proposal.
1 at what age do babies learn to crawl? does it take longer to learn in the winter when babies are often bundled in
a builder claims that air conditioners are installed in at least 85 of all homes being constructed today in the city of
Can you envision circumstances under which these outcomes would not be normally distributed? Provide three distinct examples of the business outcomes that are not normally distributed.
Write a 2- to 3-page essay in which you begin to discuss the spread of the data that you have been collecting by: Compute the variance of the measurements that you have taken so far. Show your work
the probability that a randomly selected elementary or secondary school teacher from a city is a female is 0.56 holds a
an insurance company issues life insurance policies in three separate categories standard preferred and
several statistical tests have a way to measure effect size. what is this and when might you want to use it in looking
Evaluate the research design in light of the stated research objectives - do the measurement scales used appear to be valid and reliable - Should multivariate analysis be used to understand the data?
What is the probability that exactly two heads occur, given that the first outcome was a head - the first outcome was a tail?
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