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Control limits for air conditioner thermostats. A maker of auto air conditioners checks a sample of 5 thermostatic controls from each hour's production. The thermostats are set at 72°F and then placed in a chamber where the temperature is raised gradually. The temperature at which the thermostat turns on the air conditioner is recorded. The process mean should be μ = 72°. Past experience indicates that the response temperature of properly adjusted thermostats varies with σ = 0.4°F.
(a) The mean response temperature x‾ for each hour's sample is plotted on an x‾ control chart. Calculate the center line and control limits for this chart.
(b) The sample standard deviation s for each hour's sample is plotted on an s control chart. What are the center line and control limits for this chart?
The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your rea..
It took a contractor 5000 hours to manufacture their first unit of an item. If the contractor expects to achieve a 94% unit learning curve, how many hours would be required to manufacture units 76-100?
Identify the following dilemmas as either constructive or destructive. - If women threatened with rape want to avoid being maimed or killed, then they must not resist their assaulter;
let x be the number of trials required to obtain a success where p is the probability of success on each trial. the
a. Calculate the range. b. Calculate MAD c. Calculate the sample variance. d. Calculate the sample standard deviation.
What sample size is needed to detect the difference of 10 in a 0:05-level testing against the two sided alternative with power and can you find any statistical evidence showing that the two gray levels are significantly different
Based on these values, find the sample size required to provide an estimate of the mean TRAP with a margin of error of 1.5 U/l for 95% confidence.
Discuss why the nonparametric test was used. In order to do this, you will need to state. What was the Dependent Variable (DV) and at what level was it measured. What was the Independent Variable (IV) and at what level it was measured
In 2007, Starbucks inaugurated its Dulce de Leche Latte.14 If 8% of all customers who walk in order the new drink, what is the probability that out of 13 people, at least 1 will order a Dulce de Leche Latte?
What is the usefulness of conducting a customer profitability analysis?
Given that the battery still works at 20, 000 km, what is the probability it lasts for at least another 40, 000km?
in a random sample of males 23 write with their left hand and 217 do not. 65 females write with their left hand and 455
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