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Most of the statistics you have covered have been concerned with null hypothesis testing:
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6. To test the null hypothesis that the average lifetime for a particular brand of bulb is 775 hours versus the alternative that the average lifetime...
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In the dataset StudentSurvey, 361 students recorded the number of hours of television they watched per week. The average is x with line above = 6.504...
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I am making a scatterplot graph in SPSS. It has to label participant IDs on the X axis and their difference scores on the Y axis.
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The means below are from a hypothetical study of the role of drive level and drugs on the learning performance of monkeys. The animals are given a series of 20 “oddity” problems. In this task, thr
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The means below are from a hypothetical study of the role of drive level and drugs on the learning performance of monkeys. The animals are given a series of 20 “oddity” problems. In this task, thr
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Do students study less than 150 minutes (2.5 hours), on average, each week?
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Statistics2-3 hour quiz... Please no guessing!1) Testing to see if two variables are related in how they are distributed is done with thea) Chi Square Contingency Table testb) ANOVA Single Factor test
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A student takes a 10 question true-false quiz, but did not study and randomly guesses each answer.
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It is desired to determine which class - live or online - performs better on a business statistics exam. Random and independent samples from each...
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Many firms use on-the-job training to teach their employees computer programming.
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") Your organization has a goal of 14 days for the average processing of a purchase request (PR) from notification to final approval. They are only...
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A manufacturer of stainless steel selects a random sample of 12 specimens to determine if the median chromium percentage is greater than 18%. Use the...
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Vehicles heading west on Front Street may turn right, left, or go straight ahead at Elm Street.
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A laboratory in Washington is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 90 healthy...
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You randomly select one card using a standard deck of playing cards. Which of the following events are mutually exclusive?
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But I do not have an idea where to start, an example, if you have one, would be very helpful.
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MAT540 Statistical Concepts for Research (5 hrs to complete / Link all answers to a webpage . . . If unable to find an answer, let me know...no guessing please!Statistics Quiz 1) ANOVA (Analys
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A newspaper reporter wants to know whether houses are bigger on the east side of Wichita than on the west side of Wichita.
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If you wished to predict how many bedrooms a house in Wichita has based on its appraised value, which statistical tool would you use?
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In a small town called Tatooine, the local beer brewery "Mos Eisley Cantina" is planning to send out an electronic promotion campaign with a free
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How do I work this problem?
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Using a random sample of n = 36, the sample mean is 2. Suppose that the population standard deviation is =0. Is the above statistical evidence...
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Does co-browsing have positive effects on the customer experience?
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Technology Financial Institutions 298 582 356 813 432 847 442 868 436
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Football players trying out for the NFL are given the Wonderlic intelligence test.
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4. Describe a data set that you have encountered or could envision that would be applicable to your current job, a past job, or a life situation. Identify two (2) options for graphically representing
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A variable is normally distributed with mean 6 and standard deviation 2, determine the quartiles of the variable, obtain and interpret the 80th
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A TA is supposed to hold office hours from 1-2pm but actually arrives uniformly at random between 1-2pm (and then stays to 2pm).
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(a) Suppose you have a lined piece of paper with parallel lines at distance d apart. Suppose you throw a small stick of length l ( l d ) onto the...
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Suppose a bus arrives at a station such that the time between arrivals is exponentially distributed with rate 1/. To get home, you decide to wait for...
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Let X 1 , X 2 ,. X n be a random sample of size n form a uniform distribution on the interval [ 1 , 2 ]. Let Y = min ( X 1 , X 2 ,., X n ). (a) Find...
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A function, cosine ,which will use a quadratic spline to compute approximations for the cosine function at any real number.
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MATLAB Problems: 1) For f (x) = e^(-|x|) on [-3, 3], you are to compare evenly-spaced interpolation with Chebyshev interpolation. In this exercise,...
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Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the binomial distribution to find the probability of...
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Castaneda v. Partida is an important court case in which statistical methods were used as part of a legal argument.
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The lengths of human pregnancies are normally distributed with = 266 days and = 16 days. The area to the right of x = 280 is 0. (a) Find the z value...
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Question 2: If A and B are two mutually exclusive events the probability of occurring A or probability occurring B is P(A) + P(B).
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This set of ranked data contains the red blood cell count for 20 randomly-selected dogs.
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Population 1 Population 2 n 49 22 s 7.9 Test the hypothesis that 1 2 at the = 0.05 level of significance for the given sample data.
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A random sample of 85 group leaders, supervisors, and similar personnel revealed that on the average a person spent 6.5 years on the job before being...
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scores on the SAt test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test have a mean of 21.1 and a standard deviation of 4....
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I have 25 statistic questions need to be answered the numbers not in order
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#1 Examples of Standardized Tests in Research (250-350 words)Locate an example of a research study that uses statistical tests. List the statistical tests that are used, and explain what each one allo
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CAA reported that 38% of car owners had bought used vehicles. 250 car owners were randomly selected. Give the exact expression for the probability of...
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The ELISA is a test to determine whether the HIV antibody is present. If HIV antibody is present, ELISA has 99.5% chance of identifying its presence....
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The following graph appeared in the Lexington (Ky.) Herald-Leader in October 5, 1975. Figure 10.16 A newspaper's graph of the value of the British...
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One of your employees has suggested that your company develop a new product. A survey is designed to study whether or not there is interest in the...
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A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per...
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Given that 6% of the 10000s of gadgets produced by a company have defective parts in them. A departmental store-chain is expecting a supply of 500...
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