Lean Six Sigma Assignment 4 Latest Update

Lean Six Sigma Assignment 4 Latest Update

• Actual Exam Questions and 100%

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200 sheets of paper from a printing press were inspected for smeared ink. Of the 200 sheets of paper, 17 sheets contained smeared ink. Assuming a 99% two-sided confidence interval, what is the confidence interval of the proportion smeared? - CORRECT ANSWER: I HAVE NO IDEA. My guess is: (0.034, 0.136) this is correct

A graphical display of the total percentage of results below a certain measurement value

is called a - CORRECT ANSWER: Cumulative distribution function

A hypothesis test calculated a p-value = 0.0735. Assuming α = 0.05, what conclusion should be made? - CORRECT ANSWER: The p is high, the null will fly. Fail-To-Reject H0

A Six Sigma Green Belt needs to develop a sampling plan to determine if the weight of dog food in 1000 bags has shifted by more than +/- 0.1 pound, assuming α = 0.05.Historically, the mean weight was 20.3 pounds with a standard deviation 0.31 pounds.What is the ratio of n / N? Does the Green Belt need to adjust for finite sample size?

How many bags should the Green Belt specify to be measured? - CORRECT ANSWER:

n/N < 0.05; assume infinite number of samples; n = 37 bags

NOT n/N < 0.05; assume infinite number of samples; n = 36 bags

A Six Sigma Green Belt needs to develop a sampling plan to determine if the weight of dog food in 40 bags has shifted by more than +/- 0.1 pound, assuming α = 0.05.Historically, the mean weight was 20.3 pounds with a standard deviation 0.31 pounds.What is the ratio of n / N? Does the Green Belt need to adjust for finite sample size?

How many bags should the Green Belt specify to be measured? - CORRECT ANSWER:

n/N > 0.05; finite number of samples; nfinite = 20 bags

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NOT n/N > 0.05; finite number of samples; nfinite = 29 bags

An analyst is willing to accept a two-sided α-risk of 10% to calculate the confidence interval of the mean. What is the appropriate z-value to use in calculations? -

CORRECT ANSWER: 1.645

NOT 1.28 (find 10% on the z table and see what z values goes with it)

An engineer measured the oven temperature while curing 50 fiber-reinforced prepregs.The engineer calculated a mean oven temperature of 112.3 °C and a standard deviation

of 2.43 °C. What is the two-sided 95% ? - CORRECT ANSWER: (111.6C, 113.0C)

As a new green belt in the company you receive the following information: = 4.241 mm, = 0.565 mm, and n = 5. You decide to estimate the process parameters but discover that the original data was lost and all you have are these 3 descriptive statistics. What is the best estimate that can be made of the process parameters under the current conditions: - CORRECT ANSWER: NOT mean = 4.241 sigma = 0.253

another possible answer is same mean and sigma is 1.263

NOT mean = 4.241 sigma = 0.565

Calculate the sample standard deviation for the following set of five sample observations: 1.5, 1.2, 1.1, 1.0, & 1.6 - CORRECT ANSWER: None of the answers listed

For the five data points 58.4, 53.7, 54.1, 51.9, and 52.3, the coefficient of variation is -

CORRECT ANSWER: 0.0478

For the normal probability distribution, the relationships among the median, mean, and the mode are - CORRECT ANSWER: They are all equal to the same value

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