Standard Deviation in the Business World QRB/501 Abstract On Standard Deviations in Job Performance The purpose of this study was to compare the expected payoffs from personnel programs based on standard deviation of job performances in dollars‚ the Global Estimation model‚ and the CREPID procedure. The study was done for route salesmen of a large soft drink bottling company. The Global Estimation model and the CREPID procedure were behaviorally based‚ where the standard deviation of job performance
Premium Standard deviation Statistics Variance
13. Variance and Standard Deviation (expected). Using the data from problem 13‚ calculate the variance and standard deviation of the three investments‚ stock‚ corporate bond‚ and government bond. If the estimates for both the probabilities of the economy and the returns in each state of the economy are correct‚ which investment would you choose considering both risk and return? Why? ANSWER Variance of Stock = 0.10 x (0.25 – 0.033)2 + 0.15 x (0.12 – 0.033)2 + 0.50 x (0.04 – 0.033)2 + 0
Premium Variance Probability theory Standard deviation
milligrams of tar per cigarette and a standard deviation equal to 1.0 milligram. Suppose a sample of 100 low-tar cigarettes is randomly selected from a day’s production and the tar content is measured in each. Assuming that the tobacco company’s claim is true‚ what is the probability that the mean tar content of the sample is greater than 4.15 milligrams? [0.00621] 2. The safety limit of a crane is known to be 32 tons. The mean weight and the standard deviation of a large number of iron
Premium Standard deviation Normal distribution Probability theory
Introduction Attention Getter: Did you know in 1969 there was a giant oil spill in Santa Barbara? Topic Revelation: This oil spill caused the environmental movement that has lead to our current environmental movement. By environmental movement‚ I mean what the people’s interests are in our environment. Significance Statement: The environmental movement is just as important as today then it was in 1969. The environment is constantly threatened and plays a crucial part in everyone’s lives (Goli). Preview
Premium Environmentalism Environmental movement
Language Movement Even before the creation of Pakistan‚ there was a demand to make Bangla the national language. Dr. Mohammad Shahidullah defends Bangla as the state language on 29th July‚ 1947. On September 2‚ 1947 some students of the University of Dhaka formed “Tomaddun Mojlish”‚ a cultural organization. Tamuddun Majlish in a booklet titled State Language of Pakistan: Bengali or Urdu? demands Bengali as one of the state language of Pakistan. In November 1947 Karachi‚ at Pakistan Educational
Premium Pakistan Bangladesh Bengal
struggle in all the states to stop exploitation by the Jagirdars and Zamindars. Some of the movements were successful‚ but others failed. The Kisan Sabha movement started in Bihar under the leadership of Swami Sahajanand Saraswati who had formed in 1929 the Bihar Provincial Kisan Sabha (BPKS) in order to mobilise peasant grievances against the zamindari attacks on their occupancy rights. Gradually the peasant movement intensified and spread across the rest of India. All these radical developments on the
Premium Indian National Congress Peasant Rajasthan
The LGBT Movement America has always been known as the “Land of the Free and Home of the Brave”. Unfortunately‚ our country has not let everyone be the “free”‚ authentic self that they deserve to be. Unlike race‚ religion‚ gender and age‚ sexual orientation is not a characteristic under civil rights laws. Homosexuals have faced relentless hostility and discrimination for centuries and have been on an uphill battle for equality. It wasn’t until the Stonewall Inn Riots in 1969 that a political
Free Homosexuality LGBT Sexual orientation
Student Exploration: Sight vs. Sound Reactions Vocabulary: histogram‚ mean‚ normal distribution‚ range‚ standard deviation‚ stimulus Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Most professional baseball pitchers can throw a fastball over 145 km/h (90 mph). This gives the batter less than half a second to read the pitch‚ decide whether to swing‚ and then try to hit the ball. No wonder hitting a baseball is considered one of the hardest things to do in sports! 1. What
Premium Normal distribution Arithmetic mean Statistics
curve created on a graph when using a frequency distribution method for a set of data‚ splitting the mean symmetrically. There is a big difference between standard deviation and the bell curve! Standard deviation shows the difference in variation from the average; the bell curve‚ also normal distribution or Gaussian distribution‚ shows the standard deviation and is created by the normal or equal distribution of the mean among either half. The bell curve is an important distribution pattern occurring
Premium Normal distribution Standard deviation
The 18th Amendment 1. What is your first reaction to the 18th amendment? My first reaction to the 18th amendment was why do they have this in the first place? Why do they think alcohol is the reason for everything? 2. Do you think this amendment could be passed today? Why or why not? No‚ because they see what happened before. This time it wouldn’t be better at all. 3. Why do you think some Americans in 1918 might have wanted this amendment? Because they thought alcohol was the cause
Premium Temperance movement Prohibition in the United States