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Questions and answers by

Beata Chmielewska

Questions (9)

Which testing a statistical hypothesis with significance level of alpha 0.05, when do you reject the NULL hypothesis (HO)?
1. 1 answer
2. 663 views
Which of the following is true about Standard Deviation?a. It is the maximum value minus the minimum value b. It a range of
1. 0 answers
2. 853 views
When population data are discrete and you want to compare two populations, which test is most appropriate?a. T-test b. Anderson
1. 3 answers
2. 789 views
What statistical assumptions need to be validated for ANOVA results to be valid?a. observations are from an F-distribution b.
1. 2 answers
2. 755 views
An individual is reviewing a stable, normal process that has a Cq=3 and a Cpk =5. In order to achieve a capable process, what
1. 1 answer
2. 480 views
Which of the following statements correctly interprets a 95% confidence interval on a population mean?a. It is a single point
1. 1 answer
2. 1,320 views
The null hypothesis is:a. Always contains a > in the equation b. Not needed c. The alternative hypothesis d. The hypothesis of
1. 1 answer
2. 920 views
Which test determines if there is a difference between the mean of a group and proposed standard value?Paired t-test F-test One
1. 1 answer
2. 651 views
Which one of the following test is used to compare five means, simultaneously?Run test Normally test One way ANOVA 2 Sample T
1. 1 answer
2. 733 views