CertifQ

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...

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.

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...

OPTIONS 15.4 16.4 17.4 18.4 ANSWER 17.4 EXPLANATION Answer (c) χ2 = (n-1)s2/ơ2 = (30-1)0.6/1 = 29 * 0.6 = 17.4

OPTIONS Binomial Statistic Poisson Statistic Moving Average Statistic Chi-Square Statistic ANSWER Chi-Square Statistic EXPLANATION The Chi-Square statistic can be used to determine the probability of variances occurring. χ2 = (n-1)s2/ơ2

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...

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...

OPTIONS Standard Stepwise, Forward Selection, and Backward Elimination Standard Stepwise, Forward Estimation, and Backward Estimation Standard Stepwise, Forward Regression, and Backward Regression Standard Stepwise, Forward co-relation, and Backward co-relation ANWER Standard Stepwise, Forward Selection, and Backward Elimination EXPLANATION In Stepwise Regression, the most significant variable...

OPTIONS Partial Residuals Sum of Squares Part Regression Six Sigma Predicted Residuals Six Sigma Predicted Residuals Sum of Squares ANSWER Predicted Residuals Sum of Squares EXPLANATION PRESS stands for Predicted Residuals Sum of Squares in PRESS Statistic.

OPTIONS Duminy Walker Statistic Durbin Walker Statistic Durbin Watson Statistic Duminy Watson Statistic ANSWER Durbin Watson Statistic EXPLANATION Durbin Watson Statistic Tests are used to determine the presence of auto-correlation in residuals.