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For each of the following, indicate whether the variable is ordinal or not. If the variable is not ordinal, indicate its variable type.
a. Whether or not the person believes in love at first sight.
b. Student rating of teacher effectiveness on a 7-point scale where 1 not at all effective and 7 extremely effective.
c. Number of text messages received in a day.
the label on 1-gallon cans of paint states that the amount of paint in the can is sufficient to paint 400 square feet.
Fab (www.fab.com) is a highly successful flash-deal Web site for designer goods. A flash-deal site (also called deal-of-the-day is an electronic commerce business model in which a Web site offers a single product for sale for a period of 24 to 36 ..
which of the following numerical summary measures is not sensitive to outliers in a dataset?ii onlyall of thesenone of
If 25 loads are chosen at random for a weight check, find the probability that the mean weight of those loads is less than 44.24 tons. Assume that the variable is normally distributed.
a researcher conducts a study of white and black attitudes toward the police in her community.the percentage of white
How would you set up the null and alternative hypotheses to test the concentration of the chemical in the medicine?
The total number of employees who leave each year follows a binomial distribution. Now, we want to use the normal approximation to this binomial distribution. Then in this normal distribution, the mean is ______ and the standard deviation is _____..
question 1 in a simple random sample from a population of several hundred thats approximately normally end of exam
What are the differences between reference groups and referent systems?
the claim is the proportion of peas with yellow pods is equal to 0.25 or 25. the sample statistics from one experiment
Tungsten content of the mined mineral. Further mining of the drift would be justified if the grade is above 1.25% W; can we be 95% confident that this is the case?
A seminar is given to three levels of managers (highlevel, midlevel, lowlevel).The facilitators believe the evaluations may vary with the audience.
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