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1. Or a person who eats hamburgers with ketchup, how might the traditional and the Taguchi approaches to quality loss apply with regard to the amount of ketchup that is put on the hamburger?
2. For each of the following, identify which kind of variation is at work-random or assignable-and explain your reasoning.
a. During the noon hour, there is an electrical power disruption and nuts machine-tightened during the five minutes that emergency power is on have 15% less torque than normal.
b. Although they are all labeled "9-D," the shoes on a retailer's shelf are not exactly the same size. Any given shoe is just as likely to be slightly larger than 9-D as it is to be slightly smaller.
c. The number of cars leaving downtown Cleveland during a Friday rush hour is greater than during other days of the week.
d. In a production run of curtain rods, the lengths are normally distributed, with a mean of 24.135 inches and a standard deviation of 0.142 inches.
the irs reported that 62 of individual tax returns were filed electronically in 2008. a random sample of 225 tax
the following data reports the income rate 1000 and average expense 1000 for the large area in the u.sareaincome rate
life expectancies for men and women were measured by country. it was found that the average male life expectancy was
It seems that simulation could handle any situation or study. But is that always true? Discuss instances in which a simulation would be important and useful, and then a situation in which a simulation would not be appropriate.
a particular fast food restaurant is located near a university. 50 of the customers are students. students prefer the
suppose that the mean of the annual return for common stocks from 2000 to 2012 was 14.37 and the standard deviation of
several psychology students are unprepared for a surprise truefalse test with 11 questions and all of their answers or
blood pressure is a measure of the blood force against the walls of the arteries. the larger value represents the
the line width of for semiconductor manufacturing is assumed to be normally distributed with a mean of 0.5 micrometer
Should the hypothesis of equal population means be accepted or rejected at the 5% level of significance?
Psychometric Properties of the Test
WonderDrug Company wants to test the effectiveness of a new headache drug. What sampling technique (simple random, stratified random, cluster, convenience) is WonderDrug Company using in each of the following studies?
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