In a box plot, the interquartile range (IQR) contains _________ of data studied.
25%
90%
50%
75%
Give this one a try later!
50%
The Interquartile range (IQR) = Upper quartile (75%) - Lower quartile (25%)
= 50%. It represents the size of the box in terms of data values.
The short-term Z-score is 4.0 after a process improvement effort. What will the long-
term Z-score be?
,3.5
2.5
5.5
4.5
Give this one a try later!
2.5
Long-term Z = Short-term Z - 1.5.
The variation in the measured data set due to the way measurements are being taken
is known as _______________ error.
*measurement
*sampling
*estimation
*human
Give this one a try later!
Measurement
Measurement error is the total effect of all sources of measurement
variability that cause a measured value to deviate from the true value.
At a customer service center, total incoming calls = 10,000 during a month. Total
dropped calls before they were answered = 1,333. What distribution is suitable for
process capability estimation?
*Binomial
*Normal
*Poisson
*Skewed
, Give this one a try later!
Binomial
Dropped calls are defective data. Binomial distribution is used for defective
(binary type of) data.
A data set is considered to be normal with a 95% confidence level if:
*The p-value > 0.05.
*The p-value ≤ 0.05.
*Z = 6.0.
*The p-value > 0.005.
Give this one a try later!
The p-value > 0.05
Confidence level = 95%, so risk = 5%, or 0.05. If the p-value > 0.05, then data
follow a normal distribution.
The X-Y matrix is a prioritization tool for the potential Xs based on the:
*Management decision.
*Team's collective opinions.
*Managers' instructions.
*Company policies.
Give this one a try later!
25%
90%
50%
75%
Give this one a try later!
50%
The Interquartile range (IQR) = Upper quartile (75%) - Lower quartile (25%)
= 50%. It represents the size of the box in terms of data values.
The short-term Z-score is 4.0 after a process improvement effort. What will the long-
term Z-score be?
,3.5
2.5
5.5
4.5
Give this one a try later!
2.5
Long-term Z = Short-term Z - 1.5.
The variation in the measured data set due to the way measurements are being taken
is known as _______________ error.
*measurement
*sampling
*estimation
*human
Give this one a try later!
Measurement
Measurement error is the total effect of all sources of measurement
variability that cause a measured value to deviate from the true value.
At a customer service center, total incoming calls = 10,000 during a month. Total
dropped calls before they were answered = 1,333. What distribution is suitable for
process capability estimation?
*Binomial
*Normal
*Poisson
*Skewed
, Give this one a try later!
Binomial
Dropped calls are defective data. Binomial distribution is used for defective
(binary type of) data.
A data set is considered to be normal with a 95% confidence level if:
*The p-value > 0.05.
*The p-value ≤ 0.05.
*Z = 6.0.
*The p-value > 0.005.
Give this one a try later!
The p-value > 0.05
Confidence level = 95%, so risk = 5%, or 0.05. If the p-value > 0.05, then data
follow a normal distribution.
The X-Y matrix is a prioritization tool for the potential Xs based on the:
*Management decision.
*Team's collective opinions.
*Managers' instructions.
*Company policies.
Give this one a try later!
