Statistics Questions with CORRECT Answers (Verified Update)
Q1: Error in your measurement system
Answer: An example of which type of experimental error in a DOE.
Q2: Type of experimental error in a DOE
Answer: Operator Error, Systematic Error, Random Error, Technical Error
Q3: UCL for a p-chart
Answer: Calculated when the average daily inspection quantity is 75, and the historical percentage of
defectives is 0.06.
Q4: Percentage of variation in Y explained by X
Answer: 29%, 74%, 55%, 36%
Q5: X-bar and S chart
Answer: Used to control the critical feature of a product with normal process attributes X- double
bar = 12.5, S-bar = 1.6, n = 10.
Q6: Likelihood of two households having a pet
Answer: 0%, 57.1%, 35.0%, 17.6%
Q7: Predicted value of Y when X = 12
Answer: 0, 45.0, 13.0, 108.3
Q8: Estimated effect of Factor A
Answer: 5, -21.5, 11, -8
Q9: Characteristic of distribution at point A
Answer: Skewness, Median, Mode, Mean
Q10: Probability of selecting a seven or a diamond
Answer: 17 in 52, 16 in 52, 13 in 52, 1 in 52
Q11: 95% confidence interval for defective products
Answer: 070 < p < 0.229, 0.000 < p < 0.306, -0.006 < p < 0.306, 0.018 < p < 0.282
, Q12: Critical value for F-distribution test
Answer: 055, 3.453, 3.405, 3.108
Q13: Lower control limit for NP chart
Answer: 0, 6.85, 1.77, 17.0
Q14: Probability of experiencing 2 defects in one day
Answer: 2%, 15%, 50%, 9%
Q15: Probability of event A given B has occurred
Answer: 29%, 41%, 85%, 71%
Q16: Degrees of Freedom for Treatment
Answer: DF_treatment= a-1
Q17: Degrees of Freedom for Error
Answer: DF_error= DF_total-DF_treatment
Q18: Critical Value for F-Test
Answer: Critical Value= F-distribution value at specified degrees of freedom and alpha risk
Q19: Z-score for Confidence Interval
Answer: Zα/2= Z-score at specified alpha risk
Q20: Sum of Squares for Error
Answer: Error SS= Total SS - Treatment SS
Q21: Sample Size for NP Chart
Answer: Sample Size= Total number of samples in subgroups
Q22: Intersection of Degrees of Freedom
Answer: Intersection= degrees of freedom for both samples
Q23: Probability of Selecting a Card
Answer: Probability of selecting a card= Number of favorable outcomes/ Total outcomes
Q1: Error in your measurement system
Answer: An example of which type of experimental error in a DOE.
Q2: Type of experimental error in a DOE
Answer: Operator Error, Systematic Error, Random Error, Technical Error
Q3: UCL for a p-chart
Answer: Calculated when the average daily inspection quantity is 75, and the historical percentage of
defectives is 0.06.
Q4: Percentage of variation in Y explained by X
Answer: 29%, 74%, 55%, 36%
Q5: X-bar and S chart
Answer: Used to control the critical feature of a product with normal process attributes X- double
bar = 12.5, S-bar = 1.6, n = 10.
Q6: Likelihood of two households having a pet
Answer: 0%, 57.1%, 35.0%, 17.6%
Q7: Predicted value of Y when X = 12
Answer: 0, 45.0, 13.0, 108.3
Q8: Estimated effect of Factor A
Answer: 5, -21.5, 11, -8
Q9: Characteristic of distribution at point A
Answer: Skewness, Median, Mode, Mean
Q10: Probability of selecting a seven or a diamond
Answer: 17 in 52, 16 in 52, 13 in 52, 1 in 52
Q11: 95% confidence interval for defective products
Answer: 070 < p < 0.229, 0.000 < p < 0.306, -0.006 < p < 0.306, 0.018 < p < 0.282
, Q12: Critical value for F-distribution test
Answer: 055, 3.453, 3.405, 3.108
Q13: Lower control limit for NP chart
Answer: 0, 6.85, 1.77, 17.0
Q14: Probability of experiencing 2 defects in one day
Answer: 2%, 15%, 50%, 9%
Q15: Probability of event A given B has occurred
Answer: 29%, 41%, 85%, 71%
Q16: Degrees of Freedom for Treatment
Answer: DF_treatment= a-1
Q17: Degrees of Freedom for Error
Answer: DF_error= DF_total-DF_treatment
Q18: Critical Value for F-Test
Answer: Critical Value= F-distribution value at specified degrees of freedom and alpha risk
Q19: Z-score for Confidence Interval
Answer: Zα/2= Z-score at specified alpha risk
Q20: Sum of Squares for Error
Answer: Error SS= Total SS - Treatment SS
Q21: Sample Size for NP Chart
Answer: Sample Size= Total number of samples in subgroups
Q22: Intersection of Degrees of Freedom
Answer: Intersection= degrees of freedom for both samples
Q23: Probability of Selecting a Card
Answer: Probability of selecting a card= Number of favorable outcomes/ Total outcomes
