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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.
a particular manufacturing design requires a shaft with a diameter between 19.88 mm and 20.018 mm. the manufacturing
thirty percent of all telephones of a certain type are submitted for service while under warranty. of these 70 can be
a researcher placed male rodents in the presence and absence of a conspecific male. cortisol a stress hormone levels
when a pair of dice are thrown we are customarily interested in the total number of dots t. calculatea. its mean.b. its
At the 0.01 level of significance, test the claim that the mean is less than 342 km. Should the storage yard be moved? Give your reasons.
if a study had a result of f 2 147 4.56 p 0.003 how many groups were in the study and what was the sample
assuming a normal population distribution with a mean of 125 and a standard deviation of 25 what is the probability of
A Statistic professsor plans classes so carefully that the lenths of her classes are uniformly distributed between 46.0 and 56.0 minutes. Find the probability that a given class runs less than 51.5 minutes. Find the probability of selecting a clas..
the smoking rate for the entire u.s. population of adults is 32 national institute on drug abuse. suppose that for a
The following data lists the number of hours spent working during the previous week. From these data round the relative frequencies to three decimal places.
the proportion of americans who are satisfied with the way things are going in their lives is 0.76. suppose that a
If the P-value of a hypothesis test comparing two means was 0.25, what can you conclude? (Select all that apply):
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