MDM4U – Grade 12 Data Management – Exam Unit 1: One Variable Analysis Types of Data Numerical Data Discrete: consists of whole numbers Ie. Number of trucks. Continuous: measured using real numbers Ie‚ Measuring temperature. Categorical Data: cannot be qualitatively measured Nominal: Data which any order presented makes sense Ie‚ Eye Colour‚ Hair Colour. Ordinal Data: better if sorted or ordered Ie‚ Date and Time‚ scalar options Collecting Data Primary: collected by yourself Secondary:
Premium Probability theory Sampling Normal distribution
The Final Project is worth 105 points. Please download this document to your computer and save it using the naming convention specified in the course syllabus. For the Final Project you will be using the MM207 Student Data Set‚ the survey codebook‚ and StatCrunch as necessary. You should enter your answers/responses directly after the question. There is no need to retype the project. After completing and saving the project‚ submit your project in the Final Drop Box. In the course‚ go to Unit
Premium Normal distribution Statistics Confidence interval
IBA134 Business Statistics OUA Study Period 4 (SP4)‚ 2013 Computer Assignment (Worth 15% of the overall assessment for the unit) Due date: 5pm (QLD time) on Sunday 26‚ January 2014 (Week 9) Instructions: All numerical calculations and graphs/plots should be done using EXCEL. A hard copy of your completed assignment must be submitted electronically with the Griffith OUA Cover Sheet (available in the Assessment section of the unit website) attached as the 1st page of your submission
Premium Regression analysis Normal distribution Linear regression
Quant Formula Study Guide MISCELLANEOUS‚ COMMONLY USED FORMULAS Finite population correction factor: Multiply SE of sample mean by fpc to make the correction ------------------------------------------------- Independent samples of same population with same standard deviation (variances are equal). Confidence interval: df for t-multiple is (df1 + df2)‚ or (n1 – 1) + (n2 - 1) Pooled estimate of common standard deviation: SE of difference between two sample means -------------------------------------------------
Premium Normal distribution Variance Standard deviation
Getting Started with MegaStat J. B. Orris Butler University Copyright 2002 by J. B. Orris ® Table of Contents 1. Basic Procedures............................................................................................................ 2 Buttons ........................................................................................................................... 3 Data Selection ................................................................................................
Premium Regression analysis Normal distribution
Chapter 2 Homework Problem Solutions Chapter 2 Project Management Study Objectives: construct a network diagram for a project determine critical path and expected completion time of a project with deterministic task times (note: some of us also do calculations for probabilistic times‚ but not required) calculate slack times for a particular task know how to “crash” a project down to a certain completion time at the lowest cost (note: just the concept of crashing needs to be discussed and not the
Premium Critical path method Project management Normal distribution
Analyzing Waiting Lines Most people find waiting lines irritating – waiting is idle and nonproductive time. From a service system perspective‚ however‚ a line represents a demand for service. Think of a restaurant on a Friday night. As a customer it is an irritation to have to wait 40 plus minutes for a table‚ but from the restaurant’s perspective‚ if there is not a line‚ then that means there are empty tables. Idle services are not good. So management must balance waiting time with the
Premium Normal distribution Poisson distribution Probability theory
dust a sprinkling of snow. But they are hazardous to Visual Flight Rule (VFR) pilots because of widespread decreased visibility‚ and have been behind several notable cases of vestibular disorientation. Pilots can easily become confused when the normal cues for up and down are difficult to see‚ and may develop vertigo. Or they may miss another plane flying at the same altitude altogether. Anything that results in reduced visibility can be dangerous‚ so stratus makes the list for in-flight hazards
Premium Fog Rain Precipitation
Question No. 1 A survey to collect data on the entire population is a census a sample a population an inference Question No. 2 A portion of the population selected to represent the population is called statistical inference descriptive statistics a census a sample Question No. 3 Qualitative data can be graphically represented by using a(n) Options histogram frequency polygon ogive bar graph Question No. 4 Fifteen percent of the students in a school of Business Administration
Premium Standard deviation Statistics Median
1. STAT10T 7.2.1-2 (Points: 5.0) Solve the problem. Find the critical value zα/2 that corresponds to a degree of confidence of 91%. a. 1.645 b. 1.75 c. 1.34 d. 1.70 2. STAT10T 7.2.3-2 (Points: 5.0) Solve the problem. The following confidence interval is obtained for a population proportion‚ p: 0.817 < p < 0.855 Use these confidence interval limits to find the point estimate‚ . a. 0.833 b. 0.817 c. 0.839 d. 0.836 3. STAT10T 7.2.4-3 (Points: 5
Premium Sample size Statistics Statistical hypothesis testing