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A sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon. The resulting readings were as follows: 104.3 89.6 89.9 95.6 95.2 90.0 98.8 103.7 98.3 106.4 102.0 91.1
a) Does this data suggest that the population mean reading under these conditions differs from 100? State and test the appropriate hypotheses using =.05.
b) Suppose that prior to the experiment, a value of teta=7.5 had been assumed. How many determinations would then have been appropriate to obtain beta=.10 for the alternative u=95?
a university dean is interested in determining the proportion of students who receive some sort of financial aid.
the table below contains profit projections for various decisions to be made by the university. the associated
seventy percent of the bicycles sold by a certain store are mountain bikes. among 100 randomly selected bike purchases
At the .05 level of significance, is there a difference in the mean number of months before a raise was granted among the four CPA firms?
a medical clinic in a small city in the state of washington wants to estimate the mean serum cholesterol level measured
Students from one large high school had a mean score of 58. Is there evidence to suggest that this high school is inferior?
how can you do a regression analysis on excel to predict your sales for the next 5
The random variable x has the following probability distribution.
The mean of a normal probability distribution is 60; the standard deviation is 5.
1. Provide one example each of a workforce scheduling, a blending, and a logistics linear optimization problem not discussed in the textbook. What is being optimized in each of your examples and why?
What is the probability that a randomly selected child in 2004 lived in poverty? Is whether a child lives in poverty or not independent of whether (s)he lives in a single-parent or married-couple home?
you roll two fair dice a green one and a red one.a what is the probability of getting a sum of 6? enter your answer as
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