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After reading the example of where probability values can be used in managerial decision-making to establish a product guarantee, post a comment
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An airline promotion to business travelers is based on the assumption that no more than two-thirds of business travelers use a laptop computer on...
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(a) Let G be a graph on n vertices with average degree d. Prove that G has an independent set of size at least n/2d. (Hint: Delete every vertex of G...
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A marketing manager wishes to compare the mean prices charged for two brands of CD players.
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The number of messages received by a computer bulletin board is a Poisson random variable with a mean rate of 8 messages per hour.
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In Professor Friedman's economics course the correlation between the students' total scores before the final examination and their final examination...
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University bookstore employees asked 225 students to complete a customer satisfaction survey after these customers bought their books.
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Assume that each day is either sunny or rainy, which depends on the previous 2 days' weather as follows:
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Cups of coffee each day. Furthermore, 64% eat at least one candy bar each day. Finally, half of those stockbrokers who do not drink coffee, eat a...
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Suppose that the sales manager of a large automotive parts distributor wants to estimate as early as April the total annual sales of a region.
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Scores on the quantitative portion of the GRE are approximately normally distributed with mean =150.8 and standard deviation =8.8 A random sample of...
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Letting (X_n) be a sequence of independent and identically distributed random variables with mean zero and finite variance sigma^2, prove that the...
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Consider the branching process starting with one individual for which the offspring distribution is given by p_0 = 1/6, p_1 = 1/3, p_2 = 1/2 where
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Can anyone help me with this problem Three balls are randomly chosen (without replacement) from an urn containing 3 red, 4 white, and 5 blue balls.
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What do you think is the purpose of the U.S. Census, which takes place every 10 years? What are some of the variables recorded for the U.S.
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Question 1 [ 4 marks ] As part of a lesson on statistical inference an enterprising statistics teacher gave his class of 15 students an "Ice Cream...
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Define statistics with citation and reference. Contrast quantitative data and qualitative data. Use two peer reviewed references.
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1) Why is there a difference between the calculation for the sample standard deviation and population standard deviation?
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Watch the video titled "Descriptive Statistics using 'Data Analysis' tool in Excel," located at https://www.youtube.com/watch?
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1) Although Dr. Marshall's and Dr. Benson's PSY 210 classes had the same mean Quiz 1 grade ( = 80%), Dr. Marshall's class had a standard deviation of...
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Let x t be a stationary Gaussian process with mean and autocovariance function h .
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Discuss the strength of association between variables.
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Explain how to interpret the sign of a correlation confident.
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You must use properties of linear combinations of random variables to solve these problems. Let X be a random variable where x=23, ^2 x=6.
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Match the variable contained in the malaria dataset to all of the appropriate data types listed below sex case status occupation age onset
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I estimated that 30% of my clients will have a claim in 2017. A random sample of 100 clients indicates that 32 claims were made. With an alpha of
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The GPAs of all 5720 students enrolled at a university have an approximately normal distribution with a mean of 3.12 and a standard deviation of 0.
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Consider the volleyball net shown. Determine the angle formed by guy aires AB and AC.
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The following frequency distribution analyzes the scores on a math test. Find the class boundaries for the test scores interval 95-99 Test Scores No....
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TRUE/FALSE: The Anova F test tells us exactly which group(s) is/are different.
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A professor is targeting a score of 80 on an exam. His forty-nine students averaged 78 on an exam with s = 7. Are the scores significantly less than
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Select the answer below which best describes the distribution of bank waiting times shown in the above stem-and-leaf graph?
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In a recent audit of a fast-food franchise, it was determined that 90% of all drive-thru orders in the past year were filled correctly.
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QUESTION 1 A sample of a population taken at one particular point in time is categorized as: time-series b. discrete c. cross-sectional d.
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The disturbance term in linear regression incorporates the influences of all of the regressors in the linear regression. TrueFalse 2.Test H 0: 2 = 1...
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#145 A hospital is doing a study of daily prescriptions that were inaccurate. Which control chart would the hospital use? Think about it. Would an
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How do I construct a normal probablility plot on a TI 89 calculator?
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to solve business problem through business statistics method with help excel file method for data analysis
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Assume that heart rate (in beats per minute, or bpm) before an exam for STA 100 students is distributed nor- mal, with a mean of 95 bpm and a...
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explain/discuss what statistic tool was used in the research?
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The statistical theory behind classical variable sampling tables is 2.The statistical theory behind attribute sampling tables and excel formulas for...
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Assume that the anxiety scores for college students approximate a normal distribution with a mean of 25 and a standard deviation of 7.
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Suppose you were performing a telephone survey amp; contacting 8 people. The probability of reaching a person is 40% B. Based on A, how many people
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DISCUSSION QUESTION 1 -- CHOOSING THE BEST MEASURE: Suppose you applied to be a waiter or waitress at a local restaurant and asked the manager what a...
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1.) When may a physician report codes 98966-98968?
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salaries at a big corporation are skewed right with a mean of 42,000 and a standard devation of 15,000.
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A prestigious university requires a score of at least 750 on a graduate exam for admission to its MBA program.
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Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3...
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Finish times (to the nearest hour) for 59 dogsled teams are shown below. Draw a relative frequency histogram. Use five classes.
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How to write good research proposal ?
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