Find the upper class limit of the second class

Q: 6. A 90% confidence interval for p is given as (0.35,0.65). How large was the sample used to…

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Q: A study was conducted on the average commuting distance of students at College. The study found that…

A: Answer: c) Identifying outliers using standard deviation:X¯ ± 2*SD Formula: Mean=X¯ =∑Xin Standard…

Q: (f) P(A and C) = 0.069

A: Given that    A B C Total Male 6 30 11 47 Female  19 16 15 50 Total 25 46 26 97

Q: On January 1, 2009, Breonna owed $12,960 to her friend Recardo, who was kind enough not to charge…

A: Given that,  On January 1, 2009, Breonna owed $12,960 to her friend Recardo, who was kind enough not…

Q: Suppose that X₁, X₂, ..., Xnconstitute a random sample from a Poisson distribution with mean 0. Find…

A: Given Xi~Pois(θ) ; i=1,2,..,n Mean=variance=θ for Poisson distribution

Q: دما Identify the feasible region for the following set of constraints: 2A IB≤ 0 -1A + 1.5B ≤ 200 A,…

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Q: An article in Urban Ecosystems, "Urbanization and Warming of Phoenix (Arizona, USA): Impacts,…

A: Let x be the average mean temperatures. x X-X¯2 23.3 3.562656 21.7 0.082656 21.6 0.035156…

Q: 2) Suppose that X is a random variable having a probability density function Hà) xe * =0, elsewhere…

A: 2) The probability density function (PDF) of X is given as follows: fx;β=1β2 xe-xβ, x>0=1Γ2β2…

Q: find the five number summary for the data by hand.

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Q: amount of time, in minutes, that a woman must wait for a cab is uniformly distributed between zero…

A: Let X be the amount of time, in minutes, that a woman must wait for a cab is uniformly distribution…

Q: The Mathematics section of the ACT test had a mean of 20.9 and an SD of 5.3 for the years 2013-2015.…

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Q: A study was conducted on the average commuting distance of students at College. The study found that…

A: Data given 20,34,20,20,15,16,19,3,1,15,12,18,15,13,1,12,8,11,20,10,7,13,13,32,7,4,63,18,24,6n=30…

Q: In a random sample of U.S. adults aged 18-34 surveyed in December 2011, Pew Research asked how impo…

A: Given information; Response Frequency Rel Freq One of the most important things 18 0.18 Very…

Q: Which of the following sentences is the correct interpretation of the slope? For every one unit…

A: The regression equation is given by  MPG = 37.49079 - 4.357743 Displacement

Q: Determine the probability that a random woman in the age range of 18 to 50 has a shoe size between…

A: It is given that  Mean, μ = 8.43 Standard deviation, σ = 1.35 Z-Score, Z = ( X - μ )/σ

Q: 1) Suppose tha Y is a random variable having an gamma distribution with a = 1, fin the value of k…

A: Given X~Gamma(ɑ=1, β)  NOTE: According to Bartleby guidelines expert solve only one question and…

Q: The E&M 200 students took the exam, and the distribution of this data was bell- shaped. The average…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

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Q: Suppose a random sample of n = 22 measurements is selected from a population with mean, μ = 53, and…

A: The random variable sample mean follows normal distribution. Since the sample size is large enough…

Q: 5. (L&K 4.23) Suppose that 7.3, 6.1, 3.8, 8.4, 6.9, 7.1, 5.3, 8.2, 4.9, 5.8 are 10 observations…

A: The question is about hypo. testing Given : Data - 7.3, 6.1, 3.8, 8.4, 6.9, 7.1, 5.3, 8.2, 4.9, 5.8…

Q: In the US women between the ages of 18 to 50 have shoe sizes that approximately follow a normal…

A: Given that: Population mean, μ=8.43 Population standard deviation, σ=1.35

Q: Scores on a biology final exam are normally distributed with a mean of 220 and a standard deviation…

A: Percentile is the measure that divide the data into 100 equal parts. It has 99 points to separate…

Q: stion 11 True or False: The IQR is sometimes preferred over standard deviation as a measure of…

A: Answer: The Given statement is True. That is the IQR(Inter Quartile Range) is sometimes preferred…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

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Q: Page 44, 1.5.4*. Let px(x) be the pmf of a random variable X. Find the cdf F (x) of X and sketch its…

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Q: True or False: The closer the correlation coefficient, r, is to zero, the weaker the linear…

A: We have to interpret the values of correlation coefficient r

Q: 2) Suppose that X is a random variable having a probability density function xét, x>0 ((3²) ₁ - + xe…

A: The probability density function (PDF) of X is specified as follows: fXx;β=1β2xe-xβ,…

Q: In how many ways can 3 oaks, 5 pines, and 4 maples be arranged along a property line if one does not…

A: From the provided information, There are 3 oaks, 5 pines, and 4 maples trees, that is n1 = 3, n2 = 5…

Q: An orange juice producer buys oranges from a large orange grove that has one variety of orange. The…

A: Mean(µ) = 4.20Standard deviations (σ) = 0.20 n = 16 the mean and standard deviation of the sample…

Q: n = 47 p = 0.2 Find μ.     9.7     8.9     9.4

A: Hint:  For Binomial distribution mean = μ= np

Q: K The data given to the right includes data from 43 candies, and 7 of them are red. The company that…

A: It is given that Sample size n = 43 Number of red candies X = 7 Confidence level = 90%

Q: Then find E[X], E[X2], E[2X +5], E[(X+1)²].

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Q: 125 sports fans were interviwed and asked what types of sport they have been to in the last year…

A: Given ,  125 sports fans were interviewed 74 had been to soccer.  36 had been to rugby. 66 had been…

Q: .82 If Y is a continuous random variable and m is the median of the distribution, then m is such…

A: Given that

Q: TA file 6 6 8 7 3 3 8 7 5 9 4 3 8 4 4 5 6 5 9 995 9 7 8 3 10 8 9 velop a 95% confidence interval…

A: There are 50 observations; n=50 6 4 6 8 7 7 6 3 3 8 10 4 8 7 8 7 5 9 5 8 4 3 8 5 5 4 4 4 8 4…

Q: Using the R tools to : –Build a stem and leaf for height for the data –Build a stem and leaf for…

A: Given information: Height Shoe size major MJ 71 11.5 ChemE Y 71 10.5 CompE Y 62 6 Forchem N…

Q: Let A and B have the joint probability density function f(a,b) = 6(1-a - b) for a+b 0, b>0 and it is…

A: Given that, A and B have joint pdf: f(a,b)= 6(1-a-b)   ,   a+b>1, a>0,  b>0

Q: Construct the probability mass function for each of the random variable described below Toss a pair…

A: It is given that X be the absolute value of difference of the two dice.

Q: A teacher has a jar that contains his students names: Maria, Jenna, Boyd, Melinda, Brett, Jacob,…

A: The given students names are Maria, Jenna, Boyd, Melinda, Brett, Jacob, Jasper, Tara, Colleen, Juan.

Q: If 10 percent of the balls in a certain box are red, and if 20 balls are selected from the box at…

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Q: e heights of people in a certain population are normally distributed with a mean of 68 inches and a…

A: Given that.   X~N( μ , ?^2 )   μ=68     , ?=3.8   , n=43

Q: K dogs, each of size n=15, are randomly collected and the sample means are found. Is it correct to…

A: Central limit theorem:   If the size of the samples taken from the population are sufficiently…

Q: Question 25 Polls are often taken during an election season to determine what issues are important…

A: Concept: Parameter are variable of population And Statistic are variable of sample.

Q: The times required by 3 workers to perform an assembly-line task wen recorded on five randomly…

A: Given data: Hank Susan Joseph 8 8 10 10 9 9 9 9 10 11 8 11 10 10 9 Significance…

Q: 3 231 233 238 257 263 275 285 285 286 302 311 313 314 319 323 326 328 336 339 362 364 366 378 390…

A: The given data set is 203 231 233 238 257 263 275 285 285 286 302 311 313 314 319 323 326…

Q: A research group asked 2153 U.S. adults and 1062 college presidents to "rate the job the higher…

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

Q: values. Use ascending order of the sample medians. Sample Median Probability ▼ ▼ 7 1 ☐ ▼ 7 (Type…

A: Given: Population is 48,52,54 and 57 Sample of size two are choosen.

Q: Here are the alcohol percentages for a sample of 16 beers (light beers excluded): 4.69, 4.76, 4.25,…

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Q: Should you have a cup of coffee to make you more alert when studying for a big test? A researcher is…

A: Hint: A completely Randomized Design (CRD) is one of the experimental designs where treatments are…

Q: = the sample moments by h() = 2₁h (w;, 0) - quadratic form Q₁ (0) becomes Qn(0) = h(0)'w,h(0) [T₁1…

A: If there are n sample elements (or variables) in a random sample, then first order sample moment is…