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Question: Can a variable be both of the following types? If so, give an example.
a. An explanatory variable and a categorical variable.
b. A continuous variable and an ordinal variable.
c. A quantitative variable and a response variable.
d. A bell-shaped variable and a response variable.
Legitimate probability distribution?
1.students at university x must be in one of the class ranks freshman sophomore junior or senior. at university x 35 of
a certain brand of candies have a mean weight of 0.8616g and a standard deviation of 0.0518 based on the sample of a
1. Let U and X be random variables, where U is Uniformly distributed (0,1). Given U=u, X has an exponential distribution with parameter =1/u.
Construct an 80% confidence level using a t-distribution for the mean age. Round your answer to two decimal places.
If the test is to be carried out at α = 0.05, what will be the power of the test if the true percentage of female top executives is 4%?
She surveys 100 randomly selected families and finds the mean income to be $96,321 with a standard deviation of $9555.With a0.05, is she correct?
Consider a mixture of CH4 and H2S at 444 K and 70 bar. Calculate the fugacity coefficient of methane in an equimolar mixture using each of the following the van der Waals equation of state.
The word binomial is from the Latin bi "two," and nomen "name." Explain why the word binomial is appropriate for a binomial random variable.
A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose
At the .01 level of signiicance, is the true mean greater than 10?
descriptive statistics for given data.weekly salaries in dollars for a sample of registered nurses are
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