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Q: Suppose a random variable x follow a normal distribution of N[0,( 1 3 ) 2 ]. Let z = 9x 2 , what is…

A: It is given that, x follows a normal distribution of N[0, (1/3)2].

Q: (A) Variance relates to how the values in the data set are positioned relative to each other. (B) A…

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Q: What proportion of the tickets were for New​ York?

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Q: 1. Suppose that a number is to be selected from the real line S, and let A, B and C be the events…

A: Hi there! Since there are multiple subparts we will solve the first question for you. To get the…

Q: A study was done comparing the effectiveness of exercise vs medication on lowering blood pressure in…

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Q: The lifetimes (in units of 10³ seconds) of a sample of electronic com- ponents tested to destruction…

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A: From the flowing data  blog the data visualization map is considered for the study is on:…

Q: Define random variations?

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Q: Let Y₁, Y2,..., Yn be a random sample from the inverse Gaussian distribution with probability…

A: Given density function, fy,μ,λ=λ2πy312e-λ2yμ-1y2 if y>0 a) Likelihood function: L=∏i=1nfy…

Q: Six judges rated 7 subjects as follows on a ten-point scale for a: Subject 1 2 3 4 5 6 3 357 5 A 2 7…

A: Non parametric test are used to measure when the data does not follow normal distribution. The non…

Q: Without calculations, which of the following sets of numbers would have a larger variance?

A: Variance is a measure of dispersion. In other words, how much dispersed the data set is.

Q: The average number of years a person takes to complete a certain graduate degree is 3. The standard…

A:

Q: Find the population mean or sample mean as indicated.   ​Sample: 25​, 10​, 3​, 6​, 11

A: Given: Sample data: 25, 10, 3, 6, 11 Required: To find the population mean or sample mean as…

Q: Consider the bar graph, which shows the numbers and percentages of bachelor's degrees in engineering…

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Q: e) When comparing two quantitative variables when represented by a Boxplot, we select an option

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Q: Consider you are an employee at an e-commerce company, where a customer complains that the mean…

A: Answer:- Given, a customer complains that the mean weight of a package is not equal to 2 kg.…

Q: 1. Suppose that 40% of the incoming calls involve fax messages, and consider a sample of 25 A…

A: Givenp=0.40sample size(n)=25Let "x" be no.of calls involve fax messageP(X=x)=(nx)×px×(1-p)n-x   ;…

Q: Question 6 A multinational corporation is conducting a study to see how its em- ployees in five…

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Q: Set up the structure for a statistical test to determine whether the data is normally distributed…

A: 5) A table is constructed for mean and standard deviation calculation: Lower Class Upper Class…

Q: The number of leaves on apple seedlings aged 2 months followed a normal distribution, the average…

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Q: 17. The diameter of electric cable, say X, is assumed to be a continuous random variable with pdf:…

A: Given f(x)=kx(1-x) ; 0≤x<1

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A: The given study is 'The data you collect is the number of women management in a Fortune 500…

Q: The following data represent the miles per gallon for a particular make and model car for six…

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Q: Question: If we know that P(Z ≤ z) = 0.05, what is the value z? A: z = : 1.645 B: z = = 1.96 C:…

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Q: Construct a relative frequency distribution of the data.

A: Given: Response Frequency, f Las Vegas 1268 Orlando 814 New York 1148 Chicago 539 San…

Q: why there is no .Nominal variable: and ordinal variable

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Q: Photoresist is a light-sensitive material applied to semiconductor wafers so that the circuit…

A: Given: Sample size n = 8 Significance level α = 0.05 Formula  Used: Test-statistic t =…

Q: hows the total number nd of the study.

A: The given data is Number of convictions Frequency 0 265 1 49 2 21 3 19 4 10 5 10 6…

Q: The 0 in the numerator for the formula for the paired samples + test statistic represents the _____…

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Q: Please help with d, e, & f. The world's smallest mammal is the Kitti's hog-nosed bat, with a mean…

A: given dataμ=1.5σ=0.25normal distribution

Q: Question 4 Listen The MAPE of the linear regression method is 2.47% 6.78% 9.17% 2.63% 1 Year 2 3 4 5…

A: For the given data we use Excel calculations for the MAPE of the linear regression method. To find…

Q: The move to online instruction that was forced on universities by COVID has introduced considerable…

A: Given information: x P(x) 200 0.1 250 0.2 300 0.4 350 0.15 400 0.15 Sum 1 Note: As…

Q: 4. A random variable X with a probability density function f(x) = {xe 0 (xe-x for x > 0 else a. Find…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Second answer of C is not the correct answer

A: Given data values 323 326 331 339 350 353 356 359 360 364…

Q: The following scatterplot and table represent the mean monthly temperature an rainfall of a coastal…

A: Temp (Co) Rainfall (mm) 18 45 15 20 19 50 25 115 22 65 24 100 28 300 26 190 27 175…

Q: If 8 short range rockets of one kind have a mean target error of x₁ = 98 metres with a standard…

A: a) Explanation: In the given situation, the confidence interval was constructed for difference…

Q: # of Siblings Frequency Relative Frequency Cumulative Frequency 0 34 0.1545 34 1 58 0.2636 92 2 40…

A: From the provided information, # of Siblings Frequency Relative frequency Cumulative…

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

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Q: The number of chocolate chips in a bag of chocolate chip cookies is approximately normally…

A: Introduction: Denote the random variable, Denote X as the number of chocolate chip cookies in a…

Q: mean 5 and variance 8/3

A: We have to find out three numbers with mean 5 and variance 8/3. We know mean is measure of Central…

Q: The I-85 Carpet Outlet wants to develop a means to forecastits carpet sales. The store manager…

A: Given: Monthly Carpet sales, y Monthly construction permits, x 5 17 12 30 6 12 5 14

Q: (A) If the standard deviation of Set 1 is larger than Set 2, the variance of Set 1 is also larger…

A: Here, we need to identify which of the given statement(s) is/are true.

Q: A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 3, 11, 16, 7, and 1…

A: Formula  Used: Relative frequency = Fn Where, F is the frequency and n is the sum of frequency.

Q: The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with…

A: Concept: Z is known as Standard normal variable Z=(X-mean)/standard deviation Note: According to…

Q: 1. A scientist is studying the effect of exercise on blood pressure. He studies 50 people who…

A: In this case, the scientist studies 50 people to determine the effect of exercise on their blood…

Q: Errors in medical prescriptions occur relatively frequently. In a study, two groups of doctors had…

A: Given data is   Error No Error Total Electronic 254 3594   Written 1478 2370   Total…

Q: in the data set are positioned relative to each other. (B) A larger variance implies more values in…

A: Hint: Variance tells us how much data values are on average deviated from the central value(Mean).…

Q: WebAssign ← → X COB 0.1 X 1 0.025x+ 0.4 dx= 2 (b) Calculate P(X ≤ 4). 3 Verify that the total area…

A: Given that: PDF of random variable X is, fx=0.025x+0.4,      3≤x≤50…