Calculate z score outlier Study guides, Class notes & Summaries

Liberty university edco 735 week 2 quiz (Answered) Complete Verified Solution A two-tailed outlier for the t distribution must have a t score equivalent to the: highest 5% or lowest 5% of the t distribution only the highest 5% of the t distribution only the lowest 5% of the t distribution highest 2.5% or lowest 2.5% of the t distribution In order to calculate the mean you must: multiply each score by itself take the square root of the sum have at least interval level of measureme...

Chapter 3: Statistical Significance Testing Multiple Choice 1. Of the following, which is not an issue in null hypothesis significance testing logic: a. disconfirmatory evidence b. convenience sampling c. the likelihood the null hypothesis is correct d. probability of obtaining a value larger than observed Ans: c 2. Failing to reject the null hypothesis when it is true is: a. a Type I error b. a Type II error c. a correct decision d. an incorrect decision Ans: c ...

What is PCA? (5 key points) Principal Component Analysis is a statistical technique used for dimensionality reduction, crucial when dealing with high-dimensional data in machine learning. It works by transforming original variables into new ones, called principal components, which are linear combinations of the original variables. Key Points: 1. Principal Components: Principal components are the directions in the data that maximize variance. The first principal component captures the most...

Indicator An object which defines a specific measurement you can count or calculate to assess the process performance Breakdown A grouping of indicators scores by a qualitative attribute such as priority, category, or an assignee Widget The presentation of the indicators score formatted as a single summary value, a historical trend, or using one of many other visualization types. Dashboard A canvas containing multiple widgets that together describe a process or a service and target a spec...

Chapter 03 Test Bank - Static KEY 1. The median is the measure of central tendency that divides a population or sample into four equal parts. FALSE The median divides a population into two equal parts. AACSB: Reflective Thinking Blooms: Remember Difficulty: 1 Easy Learning Objective: 03-01 Compute and interpret the mean, median, and mode. Topic: Describing Central Tendency 2. The population mean is the average of the population measurements. TRUE AACSB: Reflective Thinking B...

1. What is the purpose of measures of central tendency? a. to find the most typical value of a distribution of scores b. to find the most surprising value of a distribution of scores c. to find the most significant value of a distribution of scores d. to find the most important value of a distribution of scores ANSWER: a 2. Which of these statements describes the three commonly used measures of central tendency (mode, median, and mean)? a. They define “typical” or...

UGBA 104 FINAL REVIEW EXAM QUESTIONS AND ANSWERES WITH COMPLETE DETAILED SOLUTITIONS

Chapter 03 Test Bank - Static KEY The median is the measure of central tendency that divides a population or sample into four equal parts. 1. FALSE The median divides a population into two equal parts. 2. The population mean is the average of the population measurements. TRUE Learning Objective: 03-01 Compute and interpret the mean, median, and mode. Topic: Describing Central Tendency AACSB: Reflective Thinking Blooms: Remember Difficulty: 1 Easy AACSB: Reflective Thinking Blooms: Re...

Liberty university edco 735 week 2 quiz (Answered) Complete Verified Solution A two-tailed outlier for the t distribution must have a t score equivalent to the: highest 5% or lowest 5% of the t distribution only the highest 5% of the t distribution only the lowest 5% of the t distribution highest 2.5% or lowest 2.5% of the t distribution In order to calculate the mean you must: multiply each score by itself take the square root of the sum have at least interval level of measureme...

Is a quantitative variable always measured in numbers? - ANSWER Yes Is any measurement that you record from a sample a variable? - ANSWER False What is a statistic? - ANSWER The measure that is taken from the whole sample as a summary of the sample Sample data skewed to the left, then longer tail is at the... - ANSWER Left What is sensitive to outliers? - ANSWER Median Formula to calculate standard deviation - ANSWER s = sqrt(sum(x1-xbar)^2 / n-1) How to calculate degrees of fr...