The following data give the prices (in thousands of dollars) of seven houses selected from all houses sold last month in a city. 312 257 421 289 Find the median. 526 374 497

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.9…

A: Given: μ = 4.9 years. σ = 1.2 years. Probability = 4% = 0.04   Formula Used: Z-score = X-μσ X = μ+Zσ

Q: According to a company's website, the top 10% of the candidates who take the entrance test just been…

A: 10% of candidates take entrance test The reported mean and standard deviation is 69 and 8 μ=69σ=8

Q: with x,y=1,2,3,...,

A: Given as, fx=4xyn2 n-12

Q: The mean value of land and buildings per acre from a sample of farms is ​$1600​, with a standard…

A:

Q: The values of a particular distribution are uniformly distributed between 2 and 6. 2 A. Submit…

A: Given data

Q: Which one of the following is not a valid number for a probability? Oa. 0.32 O b. 17% O c. 0 Od. 1.5

A:

Q: Let Y₁ 1 X=(x,-X₂), where X, and X₂ are independent random variables and each of them is distributed…

A: Given that the independent random variables X1 and X2 follows χ22 distribution.

Q: The probability of winning a large stuffed animal in the ring-toss game at a fair is 10%. a) Using a…

A: a) For large sample size (n>30), binomial distribution can be approximated to normal distribution…

Q: In a large city 1 person in 5 is left handed. Find the probability that in a random sample of 10…

A: From the provided information, In a large city 1 person in 5 is left-handed that is p = 1/5 = 0.2…

Q: If n=20, ¯xx¯(x-bar)=46, and s=2, find the margin of error at a 90% confidence level Give your…

A:

Q: following sample data was obtained. What e expected ±3 sigma spread of the process, uming normal…

A: Given as,          The B will be the correct answer.

Q: Explain the differences between x-bar and R-charts. How can they be used  together and why would it…

A: X-bar and R-chart given

Q: Select one: O a. It is always equal to the z distri b. O c. It has a mean of 0. O d. It a symmetric…

A:

Q: 6. A discrete random variable can assume 5 possible values, as listed in the accompanying…

A:

Q: summarizes the age-related information they collected: Age Number of Customers 60 65 61 72 64 88 94…

A: Age number of customers <20 65 20-29 61 30-39 72 40-49 64 50-59 88 >=60 94 Total…

Q: If n=210 and p' (p-prime) = 0.41, construct a 99% confidence interval. Give your answers to three…

A:

Q: When a sample is not representative of the population we say the sample is systematic. adulterated.…

A: Solution Given That  If the sample is not representative what should be the the population ?

Q: A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence…

A: Let p be the proportion for readers own a laptop  Given p=29%=0.29, level of significance ɑ=0.05

Q: You measure 24 textbooks' weights, and find they have a mean weight of 45 ounces. Assume the…

A: 24 textbooks weights measured with mean is 45; n=24  x=45 The population standard deviation is 6.4;…

Q: A charitable organisation decided to give old age pension to people over sixty years age. The scales…

A: Given that:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.7…

A:

Q: Loved Solution The balance owed on your credit card triples from $800 to $2400 in 9 months. If the…

A: Given: The exponential function: f(X) = 800(1+0.13)X X  = 34.9 months

Q: In a recent poll, 150 people were asked if they liked dogs, and 88% said they did. Find the margin…

A: Given Sample size=n=150 Sample proportion=p^=0.88 Confidence interval=99%

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=100 and a standard…

A: Given  A normal distribution,mean=100 and the standard Deviation =15.we need to determine the…

Q: ion l

A: X Y 0 -1.5 1 2.3 2 9 3 23.2 4 42.3 The equation is y=a0+a1x+a2x2 and the normal…

Q: se the Normal model​N(95​,15​) for the IQs of sample participants.​a) What IQ represents the…

A: The mean is 95 and the standard deviation is 15.

Q: Compute the margin of error for each of the case. Assumes that the population is approximately…

A: Givensample size(n)=60sample standard deviation(s)=16.5confidence level=99%

Q: Two types of valves are being tested to determine if there is a difference in pressure tolerances.…

A: The question is about hypo. testing Given : Total no. of sample under Valve A ( n1 ) = 100 No.…

Q: orrelation function:

A: Given as, Rx 0=3, Rx ±1=2, Rx ±2=1, Rx l=0, l>2

Q: A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the z-score of the value 18.5,…

A: Solution  Given That, A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the…

Q: Suppose that textbook weights are normally distributed. You measure 40 textbooks' weights, and find…

A: The provided information is  The population mean and standard deviation is known. Then we use z test…

Q: The Admissions Office at a small university has developed a new 10-minute video about the university…

A: Given that: A fresh 10-minute film promoting the institution was created by the admissions office of…

Q: 157 792 357 000 000 0.157 0.792 0.357 1.000 0.000 . . 0.644 0.278 0.500 0.204 1.000 0.644 0.278…

A: x1 x2 x3 x4 x5 x6 x7 x8 0.157 0.792 0.357 1 0 0.167 0.586 0.563 0.157 0.792 0.357 1 0 0.833…

Q: The lengths of adult males' hands are normally distributed with mean 193 mm and standard deviation…

A: Probability distribution

Q: Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A: Empirical rule: According to empirical rule, approximately 68% of the data fall within one standard…

Q: 3. Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A:

Q: Given the following data drawn from a population whose standard deviation is known to be 1 test to…

A: Given that  Population mean =5  Population standard deviation =1 Level of significance=0.05 Data :…

Q: INSTRUCTION: Classify the following researches based on the different types of research. NOTE: (no…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: A telemarketing company knows that the daily average sales is 20. A new telemarketer who has just…

A: The question is about hypo. testing Given : No. of random sample of telemarketers ( n ) = 16 Sample…

Q: a) Construct a scatterplot for these age and price data. b) Draw a simple linear regression line. c)…

A: a)   c) y be the price and x be the age ln excel, data->data analysis y=195.47-20.26*x

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days…

A:

Q: observed over those three tosses. Use this experiment to address each of the following questions.…

A: Solution Given That, Suppose you have an experiment where you flip a coin three times. You then…

Q: The test statistic is t = ___. Critical value(s) is _____.

A:

Q: Sketch the region corresponding to the statement P(-1.6 < z < 0.1) Shade: [Between two values. Click…

A: Given  Two normal distribution graphs.we need to sketch the corresponding region according to the…

Q: In a study of statistics professors' salaries (USA) the following data was obtained: n=13,…

A:

Q: As part of your retirement planning, you purchase an annuity that pays 3.5% annual interest…

A:

Q: You were interested to know how long do students of mathematics in the school spend studying their…

A: Given,sample size(n)=10degrees of freedom(df)=n-1df=10-1=9α=1-0.95=0.05α2=0.025t0.025(9)=2.262…

Q: 3. Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A: Given data: 18, 16, 16, 16, 14, 18, 16, 18, 14, 19 The objective is to count the number of…

Q: ce level.

A: Margin of error can be defined as  MOE=tc×σn  Given data :  n=21 sample mean=42 sample standard…

Q: The following item describes a column in a data table. On the basics of the description, assign a…

A: Answer: Type: NumericalCases: OutletsNo, Data is not a time series