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In a study of nursing home patients, the following data were obtained for each patient; age, gender, previous smoking status (smoker or nonsmoker), reason for admission, nursing wing housed in, length of stay, and four-point scale rating of health status. Classify each variable by whether it is nominal, ordinal, interval, or ratio according to Stevens' classification.
Find the probability that the annual income of a hedge fund manager will be greater than $600 million and less than or equal to $1.5 billion.
1. Find solutions to the given Cauchy- Euler equation
a consumer survey is trying to assess how much bad food is being purchased. bad foods are categorized into two types
The purpose of this assignment is to develop models that can be used to predict the specific variable:frequency of going to a fast food restaurant (FFR), q2
Number of miles flown in a One- year period by the sample of "frequent flyers" was recorded. Is this a grouped or an ungrouped frequency distribution?
a batch of 40 semiconductor chips is inspected by choosing a sample of 5 chips. assume 10 of the chips do not conform
a. At the 0.05 level of significance, is there evidence that the mean life is different from 7,500 hours? b. Compute the p-value and interpret its meaning. c. Construct a 95% confidence interval estimate of the population mean life of the CFLs.
seventy percent of the bicycles sold by a certain store are mountain bikes. among 100 randomly selected bike purchases
Given that a particular student tests negative for stress, what is the probability that the test results are correct, and that this student is not overstressed?
you want to compare response rates percents of two regimens. a power of 90 and a two-sided test of size 0.05 are
In order to save costs, a firm issued a guideline that fax transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed but they want the average to be 10 or below.
the life in hours of a magnetic resonance imagining machine mri is modeled by a weibull distribution with parameters
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