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In a piston assembly, the specifications for the piston diameter are 12 ±0.5 cm, and those for the cylinder diameter are 12.10 ±0.4 cm. Assume that the natural tolerance limits coincide with the specifications. A clearance fit is required for the assembly.
What proportion of the assemblies will be nonconforming, assuming a normal distribution of the piston and cylinder diameters? Clearances more than 0.8 cm are undesirable. What proportion of the assemblies will not meet this stipulation?
Suppose in a population of 100,000, the probability that an individual will die from bird flu in a given winter is .00009. If the data fits a Poisson distribution, then the mean number of people in that population that will die from bird flu in on..
An article reports that when each football helmet in a random sample of 44 suspension-type helmets was subjected to a certain impact test, 25 showed damage.
What does this data tell us by itself before we do anything with it such as doing hypothesis testing or comparing it to other data? How can this be used by the M&M company?
Forty-eight male bank supervisors were each given the same personal file and asked to judge whether the person should be promoted to a branch manager job that was described as "routine", or the file held and other applicants interviewed.
Two automatic dispensing machines are being considered for use in a fast-food chain. The first dispenses an amount of liquid that has a normal distribution with a mean of 11.9 ounces and a standard deviation of 0.07 ounces.
What are the null and alternate hypotheses? How many treatments are there? What is the critical value of F at the 5% level of significance? Indicate in words when you would reject the null hypothesis.
The table on page 124 indicates XRAY was the only variable input into the equation and the model’s overall percentage correct was 75.47%. On page 125, STAGE was entered into the equation, but it looks like the model still correctly classified 75.47%...
Assume that no one in the population died or was lost during the follow-up period. Calculate the population risk difference using the given data. The numeric value of the population risk difference is...
the number of calories and number of grams of sugar per serving were measured for 36 breakfast cereals. the data are in
it has been stated that 75 of the population have a smart phone. if you randomly choose 10 people what is the
What is the Central Limit Theorem? How large should the sample size be if the underlying distribution of the population values are:
Winnipeg during rush hour are occupied by just the driver. If you choose 12 vehicles at random, what is the probability that 7 or more carry just the driver?
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