Chi square test. Show development for the solution A pharmaceutical company wants to determine whether or not a batch of a drug has a population variance greater than 15 in its degree of effectiveness. A random sampling of 20 medicines is carried out and a sample variance of 20.98 is obtained; A hypothesis test is assumed with alpha equal to 0.05.

Q: . A traditional fair die is thrown twice. What is the probability that: (a) a six turns up exactly…

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Q: Use the formula  C(n, x)pxqn − x  to determine the probability of the given event. (Round your…

A: Givensample size(n)=9p=13q=1-pq=1-13q=23x~Binomial(n=9,p=13)P(X=x)=C(n,x)*px*qn-x     ; x=1,2,...,n…

Q: Express the confidence interval (595.3, 720.3) in the form of ± ME. + ME= Submit Question

A: GIVEN  DATA,  the confidence interval  is (595.3,720.3)we haveto find out the sample mean and margin…

Q: In a survey, 31 people were asked how much they spent on their child's last birthday gift. The…

A: given data n = 31x¯ = 41s = 395% ci for μ = ?

Q: X

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Q: 6)  For the payoff table below, the decision maker will use P(s1) = .15, P(s2) = .5, and P(s3) =…

A: From given data we have ; Sol: Given that data P(S1)=0.15P(S2)=0.5P(S3)=0.35   Payoff, table,…

Q: Find a sequence (Pn) of characteristic functions with the property that the limit given by (t) =…

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Q: Let X be a RV that exponentially distributed with parameter A. In terms CDF of X, write an…

A: c. Let X be a RV that exponentially distributed with parameter λ. The density function for X is,…

Q: The colour of a car would be considered which type of data

A: There are two types of data: Quantitative and Qualitative. Quantitative data consists of numerical…

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Q: A researcher must estimate the mean temperature (in degrees Fahrenheit) with the following sample…

A: Data given 35.2,36.1,30.4,23.9,46,46.5,45,28.7,23.5

Q: Urn A has 13 white and 4 red balls. Urn B has 9 white and 17 red balls. We flip a fair coin. If the…

A: Given Urn A has 13 white and 4 red balls. Urn B has 9 white and 17 red balls.

Q: A fair coin is tossed repeatedly. Show that, with probability one, a head turns up sooner or later.…

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Q: (a) What is the probability that if you draw one ball, it will be blue? (b) If you draw two balls…

A: It is given that  Red balls = 7 Blue balls = 8 Total balls = 15   Note: According to Bartleby expert…

Q: The transition matrix for a Markov process is given by       State        1     2  T =   State 1…

A: Given the transition matrix

Q: 2. Let X and Y be independent random variables with common distribution function F and density…

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Q: 1. Decision Theory Consider the following random variable X. For positive integers k, Pr[X = 2k] =…

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Q: Seven students on an intramural team weigh 205 lb, 193 lb, 200 lb, 211 lb, 183 lb, 202 lb and 206…

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Q: SUPPOSE  X  HAS A NORMAL DISTRIBUTION WITH  µ= 20  AND  σ=4. FIND P( 15 ≤ X ≤ 21

A: Given,mean(μ)=20standard deviation(σ)=4

Q: Why perform sensitivity analysis

A: Sensitivity analysis is used to identify how much variation in the input values for the given…

Q: A fair, six-sided die is rolled. Describe the sample space S, identify each of the following events…

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Q: The arrival rate of patients at a hospital counter follows Poisson distribution with a mean of 25…

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Q: Marie and Sitka are painting a room together. They have a choice of mauve, lime green, or pale gold…

A: Marie and Sitka are painting a room together. They have a choice of mauve, lime green, or pale…

Q: The cumulant generating function Kx (0) of the random variable X is defined by Kx (0) log E(ex), the…

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Q: (4x³y-2)² (2x²y-5)⁰ (6xy-³)³

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Q: A normal distribution has a mean of 183 and a standard deviation of 9.4. Find the probabil that a…

A: Given that Population mean =183  Standard deviation =9.4 We have to find a...P(185≤X≤190)…

Q: 9. Let X and Y have the joint density f (x, y) = cx(y=x)e (a) Find c. (b) Show that: fx|y (x | y) =…

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Q: A radio station runs a promotion at an auto show with a money box with 15 $25 tickets, 11 $5…

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Q: n a survey of 2541 adults aged 18 years and older, 55% of respondents claimed that it was easier to…

A: Obtain the probability that at most 3 out of 6 adults chosen at random hold the opinion that it is…

Q: 6. Buses arrive at ten minute intervals starting at noon. A man arrives at the bus stop a random…

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Q: 2. Each person in a group of n people chooses another at random. Find the probability: (a) that…

A: GivenTotal number of people =n Each person chooses another person at random. a) The number of people…

Q: If there were 800 male students enrolled at NEU, where the mean wiegh of the male students is 110…

A: given data  n = 800 normal distribution μ= 110σ = 5P(x≤112) = ?

Q: I am selling my house, and have decided to accept the first offer exceeding £K. Assuming that offers…

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Q: Suppose that on the average, 5 customers arrive at a shop during a 1-hour period. Assume arrival…

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Q: Solve the problem. Round to the nearest tenth unless indicated otherwise. A bank's loan officer…

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Q: Which of the following is equal to Cov (X-Y, X-2Y), where X and Y are random variables on a sample…

A: Given that which of the following is equal to C(X-Y , X-2Y), where X and Y are random sample space…

Q: Let X be a discrete random variable with Support S = {1, 2, 3}. The probability mass function of X…

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Q: Eight pawns are placed randomly on a chessboard, no more than one to a square. What is the…

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Q: A population of 25 year-old employees has a mean salary of 29,321 pesos with a standard deviation of…

A: GivenMean(μ)=29321standard deviation(σ)=2120sample size(n)=100

Q: A random process X(t) is stationary. If it is known that E[X(10)] = 10 and var(X(10)) = 1, then…

A: Given that, A random process X(t)  is stationary. E[X(10)] = 10 var(X(10)) = 1

Q: Is the probability for my standardized range really the same as for my original distribution? How…

A: introduction the above question is about probability  We have to explain is the probability for…

Q: Show development for the solution If the confidence level is 95%, find the critical t value for n =…

A: Given confidence level=95%=0.95 Then significance level=alpha= 1-c= 1-0.95= 0.05 n=15, degrees of…

Q: he ages of people living in a retirement community are normally distributed with a mean age of 68…

A: Let X denote the ages of people living in a retirement community and it follows normal distribution…

Q: What are the probabilities P1, P2, P3 for the router failing not earlier than tB = 500h for the…

A: Let X be the time until failure is approximately well estimated with an exponential distribution…

Q: Consider a system made up of three distinguishable 3-sided dice. If the macrostate of this system is…

A: When flipping a 3-sided dice, the total outcomes are 63=216 The outcomes for tossing a die are {1,…

Q: DingAngBato enters a restaurant and queues in line to order his favorite food. Suppose that the…

A: Let X be the time after DingAngBato enters the restaurant. Y be the time after it is served. Here, X…

Q: 3. Let X be a random variable with distribution function P(X ≤x} = 0 x 1 if x ≤ 0, if 0 1. Let F be…

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Q: The trifecta at most racetracks consists of selecting the​ first-, second-, and​ third-place…

A: The total number of entries in the trifecta race is, n = 11 There are three finishers are selected…

Q: Assume casinos keep 3.25% of the money wagered. The casino statewide kept 9.56 billion during the…

A: Answer: From the given data, Assume casinos keep 3.25% of the money wagered, The casino statewide…

Q: 4. Survival. Let X be a positive random variable with density function f and distribution function…

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