1. Explain how cluster sampling is different from stratified sampling.
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A: The population standard deviation is 0.001, margin of error is 0.0001 and confidence level is 95%.
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A: From the given information, From the above plot, the total area is, ∫-∞∞∫-∞∞cfx,ydxdy=1c(area of…
Q: STOCK MTN Vodacom Cell C PRICE Po 2008 285 155 110 QTY q⁰ 2008 370 320 700 PRICE P₁ 2011 215 120 90…
A: Composite price index is given by, P = ΣP1i/ΣP0i
Q: Regression Example Suppose you want to predict your average HC/LO score across your next day of…
A: D. Given that the regression model is, Here, b=output C and M are the coefficients of the model.…
Q: Fill in the missing values for this ANOVA summary table: S.S. d.f. Between Within TOTAL 1267.84 7…
A: we know…
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A: From given data we have : x f 5 3 10 7 25 8 25 2
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Q: i) Use an appropriate method to show that W = = is a pivotal quantity. ii) Construct a 90% upper…
A: A quantity is said to be pivotal quantity if it's distribution is free from parameter θ.
Q: Suppose that Y₁, Y₂, ..., Y₁ is a random sample from a normal distribution with parameter mean 0 and…
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Q: Refer to the accompanying data display that results from a sample of airport data speeds in Mbps.…
A: Given,sample mean(x¯)=17.598sample standard deviation(s)=16.01712719sample size(n)=50confidence…
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Q: Problem 5) If X is a continuous uniform random variable with expected value E[X] = 7 and variance…
A: 5) The expected value and variance of uniform distribution are 7 and 3, respectively.
Q: a) From the Statistics Canada dataset you have chosen, calculate the measures of central tendencies…
A: The given data set is displayed below.
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A: given data H0 : μ = 175H1 : μ > 175σ = 20n = 10x¯ = 190Z = ?
Q: Let X₁, X₂, X3, X, denote a random sample of size n from the population distributed with the…
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Q: A survey by the National Retail Federation found that women spend on average R146.on a Saturday…
A: Mean(µ) = 146Standard deviations (σ) = 29.44X ~ N (µ, σ )= N(146, 29.44)
Q: A national standardized test consists of three parts: critical reading, mathematics, and writing.…
A: Given information: Data 635 701 439 447 464 502 405 453 471 476 447 590…
Q: c) Suppose that the results of carrying out the hypothesis test lead to non-rejection of the null…
A: part(c)
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A: Given n=65 P=0.16
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A: Followings are the Explanation of the question Use the Excel and calculate the Sample mean and…
Q: In the following questions, find the test statistic and give the appropriate conclusion for the…
A: Note: According to Bartleby guidelines expert solve only one question and rest can be reposted.
Q: 4. The random vector x = (x1, x2, x3) has multivariate distribution (1) 2 9)). 3 Find the…
A: Given that, The random vector x=(x1, x2, x3) TThas multivariate distribution Then we have to find…
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Q: b) f(x; 0) = . 0, } Find the maximum likelihood estimator (MLE) of 0. elsewhere
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A: Given data…
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A: Data given 218,174,239,201,260,218,262,251,223,201
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A: the general linear regression model is given by the equation: y = a + b
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A: The critical value for α=0.05 with dfbetween=5 and dfwithin=60 is obtained using R as shown below: R…
Q: Calculate approximately to 3 decimal places the composite quantity index for all three stocks for…
A: Consider the following table: Stock Price p0 Qty q0 Price p1 Qty q1 p0q0 p0q1 p1q0…
Q: Let X₁, X₂, X3,..., X, be a random sample of size n from population X. Suppose that X-N (0,1) and Y…
A: From the given information, Standard score for X¯ is, z=X¯-μσn=X¯-θ1n. Consider, Here, the…
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A: Given info: Three years ago, the mean price of an existing single-family home was $243,762. A real…
Q: 1.2 canada Youth admissions to correctional services, by age and sex 2019-2020 Age at admission 12…
A: Given data: x y 12 6 13 62 14 194 15 343 16 492 17 548 18 83
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A: Given:
Q: A teacher categorized students by whether they regularly completed their homework (or not) and…
A: The probability that a student passed the course is, Ppassed=3256 =0.5714…
Q: Calculate the approximate quantity relatives to two decimal places for the MTN and Cell C stocks…
A: Consider the following table: Stock Price p0 Qty q0 Price p1 Qty q1 p0q0 p0q1 p1q0…
Q: According to a 2009 Reader's Digest article, people throw away approximately 80% of what they buy at…
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Q: Find the mean for the number of people with the genetic mutation in such groups of 700.
A: Let p be the proportion of the people with the genetic mutation. Given that p = 0.03 Let X denote…
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Q: i) Find the sampling distribution of the statistic W = X₁ + 2X₂ X3 + X₁ + Xs. ii) What is the value…
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Q: Question #10: What is the difference between independent samples and dependent samples? Please…
A: Here, difference between independent samples and dependent samples. In independent samples, samples…
Q: Commuters A recent random survey of 100 individuals in Michigan found that 78 drove to work alone. A…
A: Given: n1 = 100 X1 = 78 n2 = 140 X2 = 60 Confidence level = 90% Formula Used: 90% Confidence…
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A: From the information, the claim is that the mean age of all people diagnosis with initial occurrence…
Q: Let X₁, X₂, X3,..., Xn be a random sample of size n from population X. Suppose that X~N(0, 1) Σ1Xi…
A: From the given information, Moment of generating function of normal distribution is eμt+σ22t2. For…
Q: joint pdf of the random variables X₁ and X2, show that X₁ and X₂ are independent and that M(t1, t₂)…
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