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The thickness of silicon wafers is an important characteristic in microelectronic circuits. The upper specification limit for the thickness is 0.015 mm.
It is estimated that the standard deviation of the thickness of wafers is 0.0014mm.We wish to accept lots that are 11% nonconforming with a probability of 5%. For lots that are 2% nonconforming, it is desired that the probability of rejection not exceed 4%.
Find the parameters of a variable sampling plan, assuming the first of the two conditions is to be satisfied exactly. A random sample of 17 wafers yielded an average of 0.013 mm. Describe the decision regarding the lot based on Forms 1 and 2.
What is the minimum sample size needed in order for you to be 95% confident that your estimate is within 5 of µ? Use the value 20 for the population standard deviation of scores on this subsection.
The data is shown in the following table. List each of the assumptions for performing an ANOVA and for each assumption evaluate whether the described study meets the assumption.
The EPA will grant a tax credit if the city-highway mileage estimate is at least 31 mpg
If represents the true average gas mileage for this new model, which of the following gives the null and alternative hypothesis that the CONSUMER group should test?
Human populations can be modeled using an exponential growth function. Use the Library for research or other resources to find the following:
The customer measured the tension of each and calculated the summary statistics. In order to conduct the test, the customer selected a significance level of Interpret this value.
three identical chips each with 0 on one side and 1 on the other are to be tossed simultaneously.a. writes the sample
A dice is thrown thrice. What is the probability that the largest score that turns up is three times the smallest?
the probability is 1 that an electrical connector is kept dry fails during the warranty period of a portable computer.
on nov 1 2012 there was a florida poll. the poll was of 549 likely florida voters. 47 said they were going to vote for
The mean value of land and buildings per acre for farms in Colorado is $1170. A random sample of 32 colorado farms is selected. What is the probability that the mean value of land and buildings per acre for the sample is (a) less than $1200 (b) ..
question the lifetime of a certain type of colour television picture tube is known to follow a normal distribution
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