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A die is loaded in such a way that the probability of each face turning up is proportional to the number of dots on that face. (For example, a six is three times as probable as a two.) What is the probability of getting an even number in one throw?
According to the study, the mean age of a self-employed individual is 46.6 years with a standard deviation of 10.8 years.
Randomly selected nonfatal occupational injuries and illnesses are categorized, according to the day of the week that they first occured, and the results are listed below.
In these questions we have to make a decision about the given claim. For example, if the claim is that a coin favors heads and sample results consists of 11 heads in 20 flips, conclude that there is not sufficient enough evidence to support the cl..
Determine Probability using exponential distribution.The average time between failures of a laser machine is exponentially distributed with the mean of 40,000 hours.
When using dummy variables in a regression equation to model a qualitative or categorical variable, the number of dummy variables should equal to
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?
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
Design an imaginary study or discuss an actual study you've read about that has an experimental or quasi-experimental design that used or would use t-tests or ANOVAs in the data analysis.
Using the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.
Explain the difference between one-factor and two-factor ANOVA. (b) Write the linear model form of one-factor ANOVA. (c) State the hypotheses for a one-factor ANOVA in two different ways.
How would I go about finding a 95% confidence interval for the population mean if a sample of size 20 has a mean of 18.2 and a sample standard deviation of 3.6?
Within distribution of scores, measures of dispersion give an indication of?
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