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Determine whether the binomial distribution is an appropriate model for the probability distribution of the given experiment.
Randomly interview 200 students about whether they favor a campus issue and count the number of yes responses. Assume that none of the students interviewed refuses to answer the question.
Suppose you had a student telephone directory for your local college and wanted to sample 100 students.
A simple linear regression model was used to describe the relationship between y = hardness of molded plastic and x = amount of time elapsed
the irs reported that 62 of individual tax returns were filed electronically in 2008. a random sample of 225 tax
in a standard normal distribution what must z be such that p-zlt z lt z
The "t-statistic" for testing whether the slope parameter was unity or not was -3.6. What is the estimated standard error for the estimated slope coefficient?
Make a scatterplot of the data, and state the sign of the slope from the scatterplot. Use the number sent as the independent variable.
List two socioeconomic factors that would be appropriate to use for strati?cation. Explain how each factor would relate to the consumption of alcohol in general and of wine in particular.
The following four comments expand the list given in the text under factors that predict the fees generated by a client that suggest six explanatory variables that can be added to the regres- sion model. Use these to improve the fit of the model s..
Use the method of transformations to find the probability density function of Y.
write a brief description of a real-world example in which one measure of central tendency provides useful information
if your anova hypothesis test shows no interaction between two factorsa you must re-run the anova in minitab without
Are there any cities that appear to be outliers because they don't fit the pattern of the rest of the data? If so, which city or cities are they?
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