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In a study to determine the incidence of a chronic disease, 150 people were examined at the end of a 3-year period. Twelve cases were found, giving an incidence rate of 8%. Fifty other members of the initial cohort could not be examined; 20 of these 50 could not be examined because they died. Does this loss of subjects to follow-up represent a source of bias that may have affected the study results?
In Exercise, a consumer magazine article reports that the air quality, as quantified by the degree of staleness, was measured on 175 domestic flights.
Assuming random guessing, what is the probability that a particular student will win all five of his or her bets?
What inspection policy should be followed, using Deming's kp rule, if the nonconformance rate of beams is 0.5%? What is the average savings in total inspection costs if 100% inspection is used as opposed to no inspection?
q1. thompson photo works purchased several new highly sophisticated machines. the production department needed some
The following data pertain to x, the amount of fertilizer (in pounds) that a farmer applies to his soil, and y, his yield of wheat (in bushels per acre):
Assume the population standard deviation is 3.3°F. At a = 0.10, do you have enough evidence to reject the manufacturer's claim?
In the test for comparing two population means when population variances are unknown and unequal, a student calculates the degrees of freedom
three missiles are fired at a target with probabilities 0.7 0.8 and 0.9 of hitting the target respectively. assume
Compare and contrast the various levels of distribution intensity. Provide two specific examples of products/service that are distributed at each level of distribution intensity and explain the rationale behind the chosen distribution intensity?
Application Assignment Worksheet - SPSS Frequencies. What type of variable is AGE? What type of variable is SEX? What type of variable is GROUP
Several studies have proposed an extravehicular robot that could move around in a NASA space station and perform physical tasks at various worksites [9]. The arm is controlled by a unity feedback control with loop transfer function
do students at various universities differ in how sociable they are? twenty-five students were randomly selected from
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