deviation of any normal random variable is always equal to one. Answer: False Type: Concept Difficulty: Easy 2. For any normal random variable‚ the probability that the random variable will equal one is always zero. Answer: True Type: Concept Difficulty: Medium 3. The graph of a standard normal random variable is always symmetric. Answer: True Type: Concept Difficulty: Easy 4. The formula will convert any normal distribution into the “standard normal distribution
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furniture company had committed some type of fraud. Assignment Our assignment for this project is to determine if there was fraudulent activity on the part of the furniture company. To determine fraud‚ we had to find the probability that a standard normal random variable exceeded the GPF samples given to us. So we used the
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1. Cu = 24-11 = $13 Co = 11-7 = $4 Critical ratio = 13/(13+4) = 0.7647 μ = 30‚000 σ = 10‚000 Using normal distribution function (=norminv(0.7647‚30000‚10000))‚ the optimum order quantity is 37‚216 jerseys to maximize profit. 2. Quantity = 32‚000 First‚ we normalize the order quantity to find the z-statistic z=Q-μσ=32‚000-25‚00010‚000=0.7 We then look up the standard normal loss function. The expected lost sale is given by. Lz=0.1429 Therefore‚ the expected lost sales = 10‚000 *
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and 6? (A) 0.550 (B) 0.575 (C) 0.600 (D) 0.625 (E) 0.650 2. Which of the following statements about a normal distribution is true? (A) The value of µ must always be positive. (B) The value of σ must always be positive. (C) The shape of a normal distribution depends on the value of µ. (D) The possible values of a standard normal variable range from −3.49 to 3.49. (E) The area under a normal curve depends on the value of σ. 3. A variable X follows a uniform distribution‚ as shown below: The
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As important equipment‚ the main bearing of rotary kiln supports the weight of full rotary part and impact loads producing by grinding media and materials. Therefore‚ the spherical bush burning of the main bearing directly affects the normal operation of the device‚ thereby affects the processing operation of the entire production line. The spherical bush of the sliding bearings in the actual production often burns watts‚ causing great loss. (1)The main failure mode of the rotary bearing is the
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ESTIMATING PROJECT TIMES AND COSTS Estimating is the process of forecasting or approximating the time and cost of completing project deliverables. Cost‚ time‚ and budget estimates are the support for control. Project status reports depend on reliable estimates as the major input for measuring variances and taking corrective action. Inaccurate estimates lead to false expectations and consumer dissatisfaction. There are reasons why estimating time and cost are important. Below are the following:
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ROP based on Normal Distribution of LT demand -Example No. 1 Example : Suppose that the manager of a construction supply house determined from historical records that demand for sand during leadtime averages 50 tons. In addition‚ suppose the manager determined that the demand during leadtime could be described by a normal distribution that has a mean of 50 tons and a standard deviation of 5 tons. Answer the following questions‚ assuming that the manager is willing to accept a stockout risk of no
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means should equal to the true population mean (µ) 2. The standard deviation shows dispersion of sample means around the population mean. It is known as the standard error of the mean 3. The sampling distribution of the mean is a normal distribution. Uses: The sampling distribution of the means is commonly analysed in statistical inferences‚ being useful in statistical estimation‚ hypotheses testing and statistical quality control. Q. Explain what is meant by sampling
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in my opinion‚ armed rebellion is not that much justifiable for some reasons such as: First‚ they don’t have any considerations‚ they ruining everything which affecting the normal living of the citizens. Second‚ those who are one of the rebel‚ some of them don’t have a normal life or either they don’t think about having a normal lives and lastly‚ it proves brutality‚ cruelty and inhumanity. These are some factors that normally happened in the era of rebellions. Some people may think that having
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PYC3704-- 2011 PYC3704 (2011) Psychological Research Study Notes IMPORTANT: Read through your UNISA study guide first! Get an overview of the module and then study each Topic individually Use this guide in conjunction with the UNISA guide- it is NOT a substitute If you have previous question papers- PLEASE DON‟T RELY ON THESE‚ you need to UNDERSTAND the content of this module if you want to pass and carry on to complete your Honours! 1 PYC3704-- 2011 Table of Contents
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