Home » Posts tagged "Lean Six Sigma Black Belt" (Page 10)

When should Mann Whitney Test be used?

OPTIONS If the data meets non-parametric testing conditions and if the data is divided into two independent samples If the data meets parametric testing conditions and if the data is divided into two independent samples If the data meets non-parametric testing conditions and if the...
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What does ANOVA stand for?

OPTIONS Analysis of Variance Analysis of Variables Accuracy of Variance Analysis and Validation ANSWER Analysis of Variance EXPLANATION ANOVA stands for Analysis of Variance.
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Find the probability of committing a Type II Error

If men having high blood sugar problems are diagnosed with Diabetes, with the mean blood sugar level to be 150 and a standard deviation of 10, and if any individual with blood sugar greater than 125 can be diagnosed with Diabetes, what is the probability...
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Type 1 Error is known as:

OPTIONS False Negative False Positive True Negative True Positive ANSWER False Positive EXPLANATION Type I Error is said to be committed when you reject the Null Hypothesis although it was actually true. For example, the movie was good, but you came out and said the...
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What is the opposite of NULL hypothesis?

ANSWER Alternate Hypothesis Not NULL Hypothesis Finite Hypothesis Fixed Hypothesis ANSWER Alternate Hypothesis EXPLANATION When the NULL hypothesis is rejected, Alternate Hypothesis is accepted. Alternate Hypothesis is considered the opposite of NULL hypothesis.
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Hypothesis testing is usually done to:

OPTIONS statistically validate if a sample mean does belong to the population. statistically validate if the means of two groups are the same or if they are significantly different. statistically validate if variances of two groups are the same or if they are different. All...
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Which factors impact the confidence intervals for a sample data?

OPTIONS Data Variation and Data Continuity Accuracy and Precision Significance Level and Sample Size Data Relativity ANSWER Significance Level and Sample Size EXPLANATION Significance level and sample size impact the confidence interval – The choice of ? for the confidence intervals dictates the margin of...
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What is Confidence Interval?

OPTIONS Interval between 2 consecutive sets of data population Estimated range of values which is likely to include the parameter of the population Interval between each measurement to gain confidence Interval between the Measure and Analyze phase ANSWER Estimated range of values which is likely...
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