Answer 4.22 4.21. The following sample data was obtained. What 4.25. In the binomial expression:is the expected ±3 sigma spread of the process,assuming normal distribution?16.1016.1316.21 16.23 16.16 16.1416.16 16.16 16.11 16.0816.16 16.18 16.15 16.1516.20 16.18 16.13 16.1416.17 16.22 16.15 16.15 16.1716.14 16.20 16.13 16.20 16.1816.1716.10a. 16.158±0.108b. 16.200 ± 0.072c. 16.173 ± 0.036d. 16.158 ± 1.0804.22. A distribution for time-to-failure processescharacterized by a failure rate that does not varywith time is:a. Weibullb. Gemmac. Lognormald. Exponential4.23. Which of the following indicates an out-of-control condition?a. A trend of 5 points in an upward ordownward directionb. 5 consecutive points either above or belowthe center linec. 2 of 3 consecutive points outside the 2-sigma warning limitsd. No points outside the 3-sigma limits4.24. A reliability test was terminated after acombined total of 171 device-hours based upona pre-established time terminated plan. Anestimate of mean-time-to-failure (8) of 57 hourswas obtained. The lower 95 percent confidencebound on the true population mean-time-to-failure is:a. 125 hoursb. 22 hoursc. 27 hoursd. 11 hoursa. 35b. 42a. The sum of the exponents of each term afterexpansion is equal to the sample sizeb. The sum of the coefficients of each termafter expansion is equal to the sample sizec. The sum of the exponents of all the termsafter expansion is equal to the sample sized. The sum of the exponents after expansionhas no relation to the sample size4.26. A music group has 7 members. How manysubgroups of 4 members can be formed fromthe music group?4.30.a. 63%b. 37%4.27. The MTBF of equipment is 5000 hours.Assuming a constant failure rate, its chance tofail in 5000 hours of operation is:a. 0.01b. 0.054.29. Given:Page of 6The length of life of a transistor is exponentiallydistributed with a failure rate of 0.002 failuresper 10,000 hours. The reliability of the transistorfor 1,000 hours is:CONCEPTSSTATISTICAL

Question

Answer 4.22 4.21. The following sample data was obtained. What 4.25. In the binomial expression:is the expected ±3 sigma spread of the process,assuming normal distribution?16.1016.1316.21 16.23 16.16 16.1416.16 16.16 16.11 16.0816.16 16.18 16.15 16.1516.20 16.18 16.13 16.1416.17 16.22 16.15 16.15 16.1716.14 16.20 16.13 16.20 16.1816.1716.10a. 16.158±0.108b. 16.200 ± 0.072c. 16.173 ± 0.036d. 16.158 ± 1.0804.22. A distribution for time-to-failure processescharacterized by a failure rate that does not varywith time is:a. Weibullb. Gemmac. Lognormald. Exponential4.23. Which of the following indicates an out-of-control condition?a. A trend of 5 points in an upward ordownward directionb. 5 consecutive points either above or belowthe center linec. 2 of 3 consecutive points outside the 2-sigma warning limitsd. No points outside the 3-sigma limits4.24. A reliability test was terminated after acombined total of 171 device-hours based upona pre-established time terminated plan. Anestimate of mean-time-to-failure (8) of 57 hourswas obtained. The lower 95 percent confidencebound on the true population mean-time-to-failure is:a. 125 hoursb. 22 hoursc. 27 hoursd. 11 hoursa. 35b. 42a. The sum of the exponents of each term afterexpansion is equal to the sample sizeb. The sum of the coefficients of each termafter expansion is equal to the sample sizec. The sum of the exponents of all the termsafter expansion is equal to the sample sized. The sum of the exponents after expansionhas no relation to the sample size4.26. A music group has 7 members. How manysubgroups of 4 members can be formed fromthe music group?4.30.a. 63%b. 37%4.27. The MTBF of equipment is 5000 hours.Assuming a constant failure rate, its chance tofail in 5000 hours of operation is:a. 0.01b. 0.054.29. Given:Page <c. 210d. 8404.28. If the probability density function of somemeasurements is found to be 0.02X for Xs in theinterval of 0 to 10, what is the probability that ameasurement will be between 4 and 5?3c. 100%d. 50%a. 0.998b. 0.9998c. 0.9999d. 0.999MacBook AirC. 0.09d. 0.201 *f(x)=e5 for x ≥ 05Then X has a mean and a standard deviation of:a. 5,5b. 5, 1c. 1,5d. 0, 1> of 6The length of life of a transistor is exponentiallydistributed with a failure rate of 0.002 failuresper 10,000 hours. The reliability of the transistorfor 1,000 hours is:CONCEPTSSTATISTICAL

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Need a answer of question 4.22.

4.22. A distribution for time-to-failure processes by a failure rate that does not vary characterized with time is: a. Weibull b. Gemma c. Lognormal d. Exponential