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The flux of molecules on a substrate in a deposition process can be written as F=1/4*n*<v> where n is the molecular density. How long does it take to form a monolayer on a 1 cm2 surface at 300 K as a function of pressure? The probability of sticking to the surface is a function of temperature, coverage, crystal face, etc., how does this change if the sticking probability is 60 %?
Given a normal distribution with 80% of the values above 125 and 90% of the values above 110, what are the mean and standard deviation?
You just heard the statistic "Your chances of being hit by lightning are one in one hundred million." Which of the following statements attempts to add clarity.
A large school district needs to know the range of scores within which they can expect the mean reading achievement score of their sixth-grade students. A random sample of 50 reading achievement scores is available.
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
Manufacturing find the values for each of the dimensions of a closed-top box of length x, width y, and height z (in inches) if the volume equals 27,000 cubic.
Use the data set for math education and conduct an ANOVA to see if there are any statistically significant differences with respect to problem solving total for students who have different categories of the concept of learning by themes (colcateg)..
Construct a test of 20 objective type items in your subject. Administer test to a group of 50 students conduct an item analysis and write a report. Explain the meaning of co-efficient of correlation. Why does the homogeneity and heterogeneity of sco..
State the population of this survey and some likely values from the population distribution. Also explain why you might expect this population distribution to be skewed to the right.
Safe food. Some food retailers propose subjecting food to a low level of radiation in order to improve safety, but sale of such "irradiated" food is opposed.
there is a 25 chance that a fuse of a certain type is defective. approximate the probability of having more than or
What is the probability that between 30 and 40 of the delinquents will commit another crime?
Numbers of rooms in top spas. A report of a readers' poll in Condé Nast Traveler magazine ranked 36 top resort spas.- Rank all the observations together and make a list of the ranks for Group A and Group B.
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