Cars arrive at Kenny's Car Wash at a rate of nine per half-hour. What is the approximate probability that in any given half-hour period at least three cars arrive? (Answer in 4 decimal places.)

Q: 19% of the squirrels in Cititon Park are gray. What is the probability that, in a random sample of 4...

A:

Q: nple avera Sample Consider the following estimator for u: W=n+2/n+1°X Is W as consistent estimator o...

A: Given: random variable x with mean mu and variance sigam^2  let W={n+2/n+1} *Xbar  xbar is the sampl...

Q: Define mode

A: Mode is the one of the measure of central tendency. It is the value which appear maximum no. of time...

Q: Packages of Lay's Potato Chips have a population standard deviation of 0.16 ounces. An SRS of 100 ba...

A:

Q: 28% of the squirrels in Cititon Park are gray. What is the probability that, in a random sample of 1...

A: Given that n = 179 p = 0.28 we know  mean = np mean = 179 * 0.28  mean = 50.12 variance = np(1 - p) ...

Q: Find the following probabilities for the standard normal random variable z. P(-2.28<z<1.77) P(-2.28<...

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Q: A physical fitness association is including the mile run in its school fitness program. The time for...

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Q: 7. For each of the following samples that were given an experimental treatment, test whether they re...

A: For asserting the claim, that indicates the indifference between the claimed population mean score a...

Q: I (2) Granola comes in a medium-size box. The weight of granola in the box is normally distributed w...

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Q: We want to conduct a hypothesis test of the claim that the population mean reading speed of second g...

A: The random variable X follows normal distribution. We have to find the value of the test statistic f...

Q: In world cup soccer the probability that a soccer team makes a penalty kick goal is about 72.5%. If ...

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Q: 324553.88 136527.47 3449062.64 O 3036975

A: From the output, the  SS (agec | lwtc) is 136527.47

Q: The average wages paid to all workers in a factory was $. 5000. The average wages paid to male and f...

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Q: The random variable x has the following discrete probability distribution. 10 0.1 11 12 13 14 (x)d T...

A: Find  P(X&gt;12)=? 

Q: sampled students can be expected to consider statistics interesting? O A. 58.66 O B. 41.34 OC. 41 O ...

A: Given that  p^= 78% and  n = 53 we need to find the sampled students can be expected to consider sta...

Q: Quick Start Company makes 12-volt car batteries. After many years of product testing, the company kn...

A: GivenMean(μ)=43.0standard devaition(σ)=8.1

Q: Еxample 6 Find Quartile Deviation for the following distribution: Classes 2.4 4-6 6 -8 8- 10 10- 12 ...

A: Class Frequency 2 - 4 10 4 - 6 25 6 - 8 18 8 - 10 12 10 - 12 5

Q: (3) The time it takes a new student to complete advising and registration time follows normal distri...

A: Given,sample size(n)=36mean(μ)=45standard deviation(σ)=20

Q: a) The value of the test statistic is: b) The rejection region for the test statistic is: c) The p-v...

A: It is given that For first years, sample size n1 = 95, x1 = 63 For fourth years, sample size n2 = 86...

Q: For a given set of bivariate data, the following results were obtained. X= 53.2, Y= 27.9, Regression...

A: here given, x¯ = 53.2Y = 27.9and regression coefficient of Y on X = -1.5

Q: 4 coins were tossed 160 times and the following results were obtained : No. of heads 1 3 4 Observed ...

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Q: Discuss Linear Regression.  (at least 50 words minimum  not copying from a website or your textbook)...

A: We have to discuss the linear regression in atleast 50 words. 

Q: You wish to test the following claim Ha at a significance level of α=0.01.       H0:μ=86.2       Ha...

A: Sample size (n) = 45Sample mean (x̅) = 88.1Standard deviations (s) = 6.2Significance level (α) = 0.0...

Q: A 76% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal ...

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Q: Employers want to know which days of the week employees are absent in a five-day work week. Most emp...

A: We know value of chi square stastics : Summation of ( (O-E) ^2) /E where O= observed value  E= Expec...

Q: Linear Regression is applied for a supervised learning problem with a training dataset with m-110 ob...

A: Given  m=110, n=8, TSS=402, RSS=345  

Q: 2. How many different arrangements can be made by using all the letters of the word MATHEMATICS ? 3....

A: Here use combination 

Q: 3. A study on the length of a certain type of bacteria was conducted. The table below shows the data...

A: The objective is to compute three quartiles for given data .    

Q: The manager of a local soft-drink bottling company believes that when a new beverage-dispensing mach...

A: Let X be the random variable from uniform distribution with parameters a = 7.5 and b = 8.5 Then,  We...

Q: 61% of all students at a college still need to take another math class. If 5 students are randomly s...

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Q: Find the median and meán deviation of the following data : Size Frequency 7. Şize Frequency 0-10 40-...

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Q: Direction: Evaluate the given graph below. Write your scientific interpretation of your evaluation/o...

A: Step 1: Description of the data: The STAR science scores for 5th grade students are collected from t...

Q: Define discrete variable

A: Given : Term  Discrete Variable   

Q: et X1, X2, X3 be independent discrete random variables that are uniformly distributed over (1,2,3,4,...

A:

Q: Terminology If data consist of names, labels, or categories with HU implied criteria by which the da...

A: It is needed to determine the level of measurement of the data.

Q: 33% of the squirrels in Cititon Park are gray. What is the probability that, in a random sample of 2...

A: Let p be the probability of squarrel gray colour  p=33%=0.33 ,n=217  Let X be the number of squarrel...

Q: Define curvilinear regression analysis

A: Given : Term  Curvilinear regression analysis

Q: The table below shows the results of two variables (A and B). We would ike to know if variable A was...

A: For the given data Perform Chi square test

Q: Examine the validity of the following statements : 1. Mean deviation from the mean is 3 and from the...

A: 5) The computer showed that the standard deviation of 40 observations ranging from 120 to 150 is 35....

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is differ...

A: Given,n=321x=22p^=xnp^=22321=0.0685α=0.01

Q: The yields of a genetically-modified whieat in bushels per acre) were compared for five different va...

A: The given data is the,  Variety  1 2 3 4 5 A 35.3 31 32.7 36.8 37.2 B 30.7 32.2 31.4 31.7 35...

Q: According to the Pew Research Center, 68% of parents have taken away their teen's cellphone and inte...

A: Given data number of success , x= 355 sample size, n =500 population proportion,p=...

Q: In the following game, identify how many subgames there are. Then, solve the game to find its subgam...

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Q: (4) A college hires students to work as lab assistance. The number of hours per week students work f...

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Q: The President of the Farmers Association wants to know how the amount of fertilizer and the amount o...

A: For the given data perform F test

Q: Find the correlation co-efficient between X and Y, which are jointly normally distributed with 1 1 2...

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Q: he average weight of a Coastal male Grizzly Bear is approximately normal with E(x) =795 pounds and S...

A:

Q: the yields of a genetically-modifed wheat in bushets per acrei were compared tor thve different vari...

A: The Given data is,  Variety  1 2 3 4 5 6 A 35.3 31 32.7 36.8 37.2 33.1 B 30.7 32.2 31.4 31.7...

Q: or ALL the following statements, evaluate each statement as either TRUE or FALSE. Then, justify your...

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Q: We use the form ŷ = a + bx for the least-squares line. In some computer printouts, the least-squares...

A: Solution:  We have given that  Elevation is  listed under  predictor. This means that elevation is t...