psi‚ where u is the mean strength of large batch of tire and population SD is 10 psi. Calculation: We have to test Null Hypothesis based on given information. Type I error will result in the rejection of a large number of good tires. Type II error of passing a faulty batch of tires can result in fatal accidents on the roads. Alpha = 5%‚ Sample Size = 40‚ for calculating Beta u = 2790 psi. H0 : u> 2‚800 Test Hypothesis Sigma 10 Sample Size 40 Alpha 0.05 Z alpha -1.644853627
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The Teeth size of Neanderthals has given Anthropologists and scientists a plethora of information to what types of foods they ate in the past. Scientists have studied Neanderthals teeth and the dental plaque to discover their past food tastes. It has been shown that food had gotten stuck on the teeth of these cavemen‚ allowing the types of food they ate to be researched and studied. Neanderthals show knowledge and capabilities that have never been thought‚ and may be smarter than given credit.
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Calculating Sample Size Types of Samples Subjective or Convenience Sample - Has some possibility of bias - Cannot usually say it is representative - Selection made by ease of collection Simple Random Sample - No subjective bias - Equal chance of selection; e.g.‚ select the fifth chart seen on every third day - Can usually be backed to say it is representative Systematic Sample - Is a random sample - Equal chance of selection due to methodology; e.g.‚ computer-generated list of
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they’re able to communicate with their teacher. Are they able to ask questions or is the class simply hurried along because so much needs to be covered and there isn’t nearly enough time to stop for every question? A big factor in creating an adequate learning environment is maintaining small class sizes. Class size has been a continuing problem in LAUSD in recent years due to budget cuts‚ but should the students suffer because of lack of funds? Providing a small class ensures that students will
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Size of UK Food Industry The food and drink industry is the largest of the manufacturing sectors accounting for 15% of manufacturing overall‚ with a total turnover of £70bn. The industry employs some 500‚000 people‚ equating to 13% of the UK manufacturing workforce. Food and drink remains the biggest spending category. In 2005‚ consumer spending on food and drink was nearly £153.8bn‚ 20% of total UK consumer expenditure.1 Page 2 Year on year UK consumer expenditure on food is increasing across
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Common-Size Analysis When comparing financial statements‚ it is often necessary to compare successive years ’ statements of the same company or statements from companies of various sizes. Ordinary financial statements can make it difficult to recognize trends or spot disproportionate categories since the figures make it difficult to tell how much a category has changed in relation to the other categories. Common-size statements solve this problem by valuing all categories in relation to a base
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Class sizes in schools have been a controversial topic for many years now. They are many different views and opinions on this topic‚ but the bottom line is that class sizes can affect the learning of elementary students. Smaller classes have more to offer than large class sizes. Since elementary school is where most students really establish themselves academically‚ being in a smaller class allows teachers to involve more discussion in their curriculums (Slavin‚ R. E.). A smaller class size also
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Ideal family size Comment on each of the reasons the writers gives for people having children. The reasons are : 1. “That it would benefit the child” In my opinion it would only benefit the child if he gets to enjoy the fun things about life. In some sad cases‚ it can also benefit the child if the parents have insurance the child can use the money for furthering their education or advancing there self. 2. “To increase the world’s total happiness” I don’t think that it increases the world
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tigress weighs 117.9 kg (260 lb). The mean weight of historical Siberian tigers is supposed to be higher: 215.3 kg (475 lb) for male tigers and 137.5 kg (303 lb) for females.[7] Measurements of more than fifty captured individuals suggest that body size is similar to that of Bengal tigers.[8] The largest male‚ with largely assured references‚ measured 350 cm (140 in) "over curves"‚ equivalent to 330 cm (130 in) between pegs. The tail length in fully grown males is about 1 m (39 in). Weights of up
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Target size and power is a major strength of theirs. When you see the statistics and rankings you can tell that they have a huge presence. They are a Fortune 50 company. They also ranked in the top 100 of the most valuable global brands in 2014. Furthermore‚ they ranked in the top three US retail brands list. Target has stores all over the US. There are about 1800 stores‚ which brought revenue of over $72 billion. Like Wal-Mart‚ they sell a variety of merchandise (OneSource). Also like Wal-Mart Target
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