Sample sizes and confidence intervals for proportions Chong Chun Wie Ext: 2768 ChongChunWie@imu.edu.my Content • Sampling distribution of sample means (SDSM) • Normality Test • Estimating a population mean: σ known • Estimating a population mean: σ unknown • Standard deviation of proportion • Confidence interval of proportion • Hypothesis testing with proportion Population and Sample Samples Populations Sampling distribution of sample means (SDSM) Sampling distribution • Example – Select
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threats to models health some argue that a minimum weight should be mandatory. They want the models to not be one pound under the healthy weight limit that they require. The problem is that not everyone agrees. Anonymous people argue that models look great while advertising just the way they are as an now. Some argue that if models have a minimum weight limit and it’s passed as a requirement many ordinary people are going to want to go into the modeling business. The other argument is that the models
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In "Living beyond limits" TEDTalks‚ Amy Purdy‚ a survivor of meningococcal meningitis‚ encourages her audience of survivors‚ and people who need more confidence to come out of their limits. We live in a world where we restrict so much from ourselves while walking blindly not noticing what we’re missing. Just forget your limits for a while because "in the end‚ we only regret the chances we didn’t take" and that tends to be true. We focus so much on our flaws and what other people think that we forget
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Receiving your P1 licence signifies an important time in a teenager’s life. For many‚ it can be seen as a rite of passage‚ a transition into adult hood. It gives a teenager the rite and freedom of travelling in a car on their own‚ and opens up new opportunities for work‚ travel‚ school etc. Despite these privileges‚ receiving your p-plates comes with major responsibilities. Drivers who are on their p-plates are often involved in horrifying crash statistics and are perceived as reckless‚ irresponsible
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women nowadays are too blind as they always care other people’s feelings rather than themselves. It is not really worth for the women to undergo the operations if they only aim at capture men’s heart. Secondly‚ I think every woman should be more confidence and optimistic when facing any problems.
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The school uniform is the epitome of sameness in the American society. It turns a lively‚ colorful world upside down and into the depths of bland uniformity. Schools should not implement school uniform policies because uniforms limit individuality and go against the Constitutional right to freedom of expression‚ they cause parents to have to spend a lot of money on a second wardrobe‚ and there is no conclusive data that proves that uniforms actually solve any of the problems they were intended to
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Confidence intervals and prediction intervals from simple linear regression The managers of an outdoor coffee stand in Coast City are examining the relationship between coffee sales and daily temperature. They have bivariate data detailing the stand ’s coffee sales (denoted by [pic]‚ in dollars) and the maximum temperature (denoted by [pic]‚ in degrees Fahrenheit) for each of [pic] randomly selected days during the past year. The least-squares regression equation computed from their data
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I am arguing for the reasons why there shouldn’t be speed limits. My first reason is because sometimes people be having places to be. My second reason is because what’s the point of having speed limits if most people don’t follow them. My third reason is because a lot of people have their own speed. Usually when people are going past the speed limit it is because their rushing to be somewhere else. I think they should be allowed to travel fast to their location if there in a rush. Some people have
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Should the drink drive limit be zero? For my report‚ I am going to see if the drink-drive limit should be zero. I am going to research the following: * Pros of the limit being reduced * Cons of the limit being reduced * Environmental effects * Social effects * Financial effects After researching these categories‚ I will decide whether the or not using all the facts and research I have procured. I will use reliable sources and proven sources for my research. I will also give
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Chapter I THE PROBLEM This research studies focuses on the level of consumer confidence of the residents in Batangas and Lipa City. This chapter includes introduction‚ background of the study‚ statement of the problem‚ conceptual framework‚ research hypothesis‚ scope and delimitation‚ significance of the study and definition of terms. Introduction Consumer confidence is defined as that which consumers feel about the overall state of the economy and their personal financial situation. How confident
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