In your response to your peer’s initial post comment on other variables that might potentially confound the relationship between the two displayed variables. Peer response Simple linear regression analyses provide a broader scope of information than correlations do. In conducting a simple linear regression, researchers are provided with several values including the slope, y-intercept, r-squared […]
Quiz 1. UMUC Stat Club is sending a delegate of 2 members to attend the 2015 Joint Statistical Meeting in Seattle. There are 10 qualified candidates. How many different ways can the delegate be selected? 2. Imagine you are in a game show. There are 4 prizes hidden on a game board with […]
MATH 170 FINAL 1 Rating A 1. State whether the statements are true or false: AcA A) True B) False 2. Fill in the missing value. Assume simple interest. principal $19,582 interest rate 4% time ________ simple interest $2,349.84 A) time 3 years B) time 4 years C) time 2 years […]
1. value:7.14 points Computer abuse by employees is an ongoing worry to businesses. A study revealed the data shown below. At α = .01, is the frequency of disciplinary action independent of the abuser’s level of privilege? Computer Abuse Incidents Cross-Tabulated by Privilege and Punishment Level of Privilege Disciplined Not Disciplined Row Total Low 23 […]
Consider the following findings from statistical studies: • Smoking increases the risk of heart disease.• Eating margarine can increase the risk of heart disease.• One glass of wine per day can protect against heart disease but increases the risk of breast cancer.• Potato chips and sugary sodas are the foods most strongly associated with weight […]
Assignment 1: Bottling Company Case Study Due Week 10 and worth 140 points Imagine you are a manager at a major bottling company. Customers have begun to complain that the bottles of the brand of soda produced in your company contain less than the advertised sixteen (16) ounces of product. Your boss wants to solve […]
Demonstrate the use of the normal distribution, the standard normal distribution, and the central limit theorem for calculating areas under the normal curve and exploring these concepts in real life applications. Instructions Student Profile Frank has only had a brief introduction to statistics when he was in high school 12 years ago, and that did […]
Ex. 22 Richter scale earthquake magnitudes are listed in Data Set 16 of Appendix B. a. Determine whether those magnitudes are from a population with a normal distribution b. For the Richter scale, assume that the magnitude of the energy from an earthquake is first measured, then the logarithm (base 10) of the value is […]
Assignment 1: Discussion—Interest Rates Interest rates are a fact of life that you will encounter both professionally and personally. One area of interest rates that you may be most concerned about are those applied to credit card debt. Let’s say that you had $2400 on a particular credit card that charges an annual percentage rate […]
LESSON Lesson Objectives: Student will write null and alternative hypotheses. Student will find critical values for testing a mean or proportion against the population mean or proportion using the appropriate test, based on the sample size. Student will find critical values for testing the difference between two means or two proportions using the […]
