Problem 0.1: A factory manufactures a specific copper part. It is found at a certain temperature the resistance in mn of this part is normally distributed with mean of 23.8 and standard deviation of 1.23. Among 5000 units of such parts, how many units are likely to have a resistance (a) less than 23? (b) greater than 24? (c) between 24.2 and 24.5?

Q: Which of the following is true about the variance? Extreme values may skew the given data set The…

A: The variance of a data shows how far each data points varies from their mean. Variance is best…

Q: Suppose X, Y and Z be random variables with j.p.m.f. f(x, y, z)= kxyz with x E {1,2}, y = {1, 2, 3),…

A: Given information: The value of k is obtained below:

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Q: Q1: Choose the correct answer Let X haveN (u, o²), then 3. The value of E(x-μ|²) is O A B A. 0² B.…

A: Solution Given X~N(mu,sigma^2)

Q: a value represents the 95th percentile, this means that

A: Here Percentile means there is that much percent value equal or lower than that

Q: 1. Brand A perfume claims that their fragrance lasts longer than from Brand B. To prove if the claim…

A: The provided information is  Brand A(µ1)       Brand B(µ2)n1=12        n2=15x¯1=8…

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A: Answer : - Explain the difference between the z-test for μ using rejection region(s)  and…

Q: Assumptions of Nonparametric techniques?

A: The objective is to state the assumptions of Non-parametric techniques.

Q: that the event will fa

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Q: In a recent Super Bowl, a TV network predicted that 27 % of the audience would express an interest…

A: Givensample size(n)=122x=38The null and alternative hypothesis is H0:p=0.27Ha:p<0.27

Q: store sells two types of toys, A and B. The store owner pays $8 and $14 for each one unit of toy A…

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Q: Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that those…

A: Given Information: Treatment: Sample size n1=17 Sample mean x¯1=0.48 Sample standard deviation…

Q: Information regarding the price of a roll of camera film (35 mm, 24 exposure) for a sample of 13…

A: From the provided information, Sample size (n) = 13 Sample mean (x̄) = 4.9846 Standard error (SE) =…

Q: [Q2] The probability distribution for the discrete random variable X is described in the table…

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Q: For the statement below, write the claim as a mathematical statement. Use proportions to state the…

A: Given: The claim according to recent survey 65% of college students did not use students loan to pay…

Q: Suppose that the table shows the COVID-19 cases and deaths in some NCR cities during the COVID-19…

A: Given data is

Q: MULTIPLE CHOICE According to a report from the United States Environmental Protection Agency,…

A: Type II error is the probability of fail to rejecting the null hypothesis when it is actually not…

Q: A laundry shop averages 9 customers per hour. Assume that the number of customers is a Poisson…

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Q: 16. Which of the following is the percentile point of P75? O A. 27 O B. 36

A: Solution: Class Class Boundries Frequencyf cf 60 - 64 59.5 - 64.5 3 3 65 -…

Q: Consider the sample space S= {(-2, 4), (-1, 1), (0, 0), (1, 1), where each point is assumed to be…

A: The sample space is S=-2,4,-1,1,0,0,1,1,2,4 X is the first component of sample point Y is the second…

Q: ticulas process and sequence of steps that can filter and syntheses information that the research…

A: Research as a scientific and systematic approach for pertinent information on a specific domain…

Q: Q2. Use the linear representation of ARMA(1, 1) to compute its covariance function.

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Q: 35. For each of the following, the sample mean, sample stand- confidence interval is given. Find the…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Which one of the following statements is true about Nonparametric techniques? A.they are harder to…

A: Given a parametric and nonparametric test

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A: Given, We assume 1 as fulltime faculty; We assume 2 as part timers; Significance level,

Q: director wi employee to two equ method 2.

A: Given: The range is approximately 8 minutes σ=8  The margin of error is  E=1 minute With probability…

Q: During the first day of classes for the second semester, the Statistics and Probability teacher of…

A: Answer : - Given data  sample size n = 100                  Sample mean x  = 80.68,   Population…

Q: The logistic model P(n) = ka) Use a graphing utility to graph P= P(n). The graphs are shown in the…

A: Given: The given logistic model P(n)=113.31981+0.115e0.0912n

Q: Mean value of a random sample of 60 items was found to be 145 with standard deviation of 40. Find…

A: The question is about confidence interval Given : Sample size ( n ) = 60 Sample mean ( x¯ ) = 145…

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A: Given Information: Total number of people is 10300 Number of people who have the disease is 300…

Q: What are the two decisions that you can make from performing a hypothesis test?

A: here use basic of hypothesis testing ,  In hypothesis Testing the result is either in favor of Claim…

Q: What is a discrete probability distribution? What are the two conditions that determine a…

A: Discrete probability distribution:  A discrete random variable is a variable which can only take on…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: Given: Standard deviation, σ = 2.8​​​​​​ True mean differs from the sample mean by one more than one…

Q: Listed below are ages of actresses and actors at the time that they won an award for the categories…

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Q: Listed below are altitudes (thousands of feet) and outside air temperatures (°F) recorded during a…

A: Given data: Altitude 4 10 14 19 29 31 33 Temperature 55 31 27 -1 -27 -41 -54

Q: The World Bank Group suggests that a minimum of 6 GB of internet data per month per user is needed…

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Q: ssume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

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Q: 8- Let the random variable X have the density function f(x) = {kx,0 ≤x≤ √2/k lo,elswhere If the mode…

A: Given information, fx=kx, 0≤x≤2k Consider, the median:…

Q: Business projection: An investor is considering an investment in a start-up company. She estimates…

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Q: The records of a light bulb manufacturer show that, when the manufacturing machinery is working…

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Q: Test the claim about the difference between two population means μ, and μ₂ at the level of…

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Q: In a recent Super Bowl, a TV network predicted that 35 % of the audience would express an interest…

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Q: . Which of the following about ordinal level of measurement is NOT true? O It classifies data in…

A: When the data set is distinguished on the basis of labelling variables that are qualitative in…

Q: Question 4 Suppose that f(x)- e for 0 < x. Determine the (b) P(1 < X < 2.5) (d) P(X<4) following:…

A: Given: fx=e-x for 0&lt;x

Q: The probability that none of the three bulbs in a set of traffic lights will have to be replaced…

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Q: A study was done on proctored and nonproctored tests. The results are shown in the table. Assume…

A: Solution Given

Q: If n=380 and p^(p-hat) =0.12, find the margin of error at a 95% confidence level Give your answer…

A: Given data: n = 380  p^(p-hat) =0.12, To find : The margin of error at a 95% confidence level

Q: Construct a 95% confidence interval for μ₁ - H₂. Two samples are randomly selected from each…

A: Given: n1= 50, n2= 60. x1= 25,  x2= 23. s1= 1.5, s2= 1.9

Q: Part III. What conclusion may be drawn? [Select] W. There is sufficient evidence to reject Ho. The…

A: