There are several types of bad statistics that can be seen when looking at statistical data. According to the video “Don’t be fooled by bad statistics” (2010)‚ there are three basic types of bad data consisting of poorly collected data‚ leading questions‚ and misuse of center. Poorly collected data can produce misleading results. For example‚ when a publishing company conducted a phone survey of popular magazines but did so during business hours when stay at home moms were most likely to participate
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45.16 + 2.3263 * 10 = 99% of households spent less than $68.42 NORMINV (.99‚ 45.16) References Levine‚ D.‚ Stephan‚ D.‚ Krehbiel‚ T.‚ & Berenson‚ M. (2008) Statistics for managers using Microsoft Excel w/cd. (5th ed.). Upper Saddle River‚
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It is known that there are two data types that are utilized to evaluate and draw meaningful conclusions through statistics‚ population and sample data. These two data types are utilized to formulate end conclusions of data that is to be collected and data that is to be reviewed. The description of population data can best be explained‚ as the complete collection of all data that is to be queried/collected and reviewed. Sample data‚ a subset of population data‚ is the partial collection and review
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How to validate root causes in a lean sigma approach Silvia Pederzolli Milan‚ the 15th of april 2013 attivaRes Define Opportunities Measure Performance Analyze Opportunity Improve Performance Control Performance CCR’S Objective • • • • • Identify problem statement: what is wrong and why. Deviation from what is expected (targeted performance). How much/how often Effects on Customers. Find and validate the root causes that assure the elimination of “real” root causes.
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Over the summer we went to Nashville‚ Memphis and Notre Dame for baseball tournaments. While at Notre Dame we visited the campus and saw touchdown Jesus while taking a tour of the football field. Also after the tour we had a game on their field‚ the entire field was turf. As you walked into their complex you heard the popping of the catcher’s mitt from the pitch that came in around 80 mile per hour. As well as the crack from the wood bats as the players made solid contact For our first tournament
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alternative hypothesis should state µ1 − µ2 > 0 ANSWER: c 2. A Type I error is committed when a. a true alternative hypothesis is not accepted b. a true null hypothesis is rejected c. the critical value is greater than the value of the test statistic d. sample data contradict the null hypothesis ANSWER: b In determining an interval estimate of a population mean when σ is unknown‚ we use a t distribution with a. n − 1 degrees of freedom 3. b. c. d. ANSWER: 4. n degrees of freedom n −
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MM207 Final Project Name: Eddie S. Jackson 1. Using the MM207 Student Data Set: a) What is the correlation between student cumulative GPA and the number of hours spent on school work each week? Be sure to include the computations or StatCrunch output to support your answer. My answer : 0.27817234 (from StatCrunch): Correlation between Q10 What is your cumulative Grade Point Average at Kaplan University? and Q11 How many hours do you spend on school work each week? is: 0.27817234 b)
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It was June 22 and it was a perfect day for a baseball game. My team the Diamondbacks‚ needed one win to get into the playoffs‚ and that clinching game was today. When I woke up the sun was coming up and I went to go wake up my dad so he could take me to the game. When I woke him up he looked like zombie who has not slept in weeks. “Noah‚ why are you up so early?” he said‚ “I just want to make sure we are not late for the game.” I replied. “Noah it’s 7:30am and your game is not until 3:30!” I
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Investigating Bottling Company Case Study T.P University Statistics Mat 300 Mr. Thevar December 01‚ 2013 Investigating Bottling Company Case Study The case study that is being investigated is for a bottling company producing less soda than what is advertised. Customers have complained that the sodas in the bottles contain less than the advertised sixteen ounces. The employees at the company have measured the amount of soda contained in each bottle. There are thirty bottles that have
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Baseball has been America’s pastime since the late 1800’s. White men were the only ones who played the sport. Major League Baseball denied the access of allowing black players to play on the same field as the white players. They believed it would increase the amount of black fans coming to the stadiums and push away the white fans from coming to watch baseball anymore. In 1945‚ a new commissioner of baseball was hired‚ Happy Chandler‚ and he was more supportive of integrating the major leagues. People
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