Homework Answers
here for tolerance -/+10% ; a resistor will be unusable if resistor have resistance below 360 or more then 440
hence P(resistor will be unusable) =P(X<360)+P(X>440)=1-P(360<X<440)
=1-P((360-391.5)/31.7<Z<(440-391.5)/31.7)=1-P(-0.99<Z<1.53)=1-(0.9370-0.1611)=0.2241
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Required information The JMH Company manufactures resistors with an ideal resistance value of 400 ohms. A...
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Page 16 Example: An electronic parts factory produces resistors. Assume the resistance follows a distribution with...
Page 16 Example: An electronic parts factory produces resistors. Assume the resistance follows a distribution with standard deviation 0.156 ohms. A random sample of 60 resistors has an average resistance of 0.45 ohms. The factory wishes to test that the population mean resistance is less than 0.5 ohms? a. Find the p-value b. Express the rejection region of the above test in terms of the sample mean. c. Find trpel error d. Find the probability of type II error if...
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Problem 3 - The distribution of resistance for resistors of a certain type is known to be normal, with 10% of all resistors having a resistance exceeding 10.634 ohms, and 5% having a resistance smaller than 9.7565 ohms. What are the mean value and standard deviation of the resistance distribution?
Page 16 Example: An electronic parts factory produces resistors. Assume the resistance follows a distribution with standard deviation 0.156 ohms. A random sample of 60 resistors has an average resistance of 0.45 ohms. The factory wishes to test that the population mean resistance is less than 0.5 ohms? a. Find the p-value b. Express the rejection region of the above test in terms of the sample mean. c. Find trpel error d. Find the probability of type II error if...
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quality control department rejects the whole batch of resistors
whenever it finds two or more defective untsin a sample of 15
resistors tested. If a batch of resistors contain 1 percent
defective units, determine the following: (a) the mean and standard
deviation of the defective resistors in a sample of 15 resistors
chosen from the batch, (b) the probability of rejecting the entire
batch of resistors, and (c) the probability of finding no defective
resistor when a sample of...
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