explain this elements of Sampling? 1. Sample is the representative of all the characters of the population. 2. All units of the sample must be independent to each other. 3.The number of items In the sample should be fairly adequate. 4. If more than one sample has been drawn from the population then the samples must be homogeneous in nature and not contradictory to each other. .

Q: a. How many students got a score of 26 or below? b. What points divides the distribution such that ...

A: The median (Q2) value divides the distribution such that half is below it and half is above. The med...

Q: Problem 5.15 (MT-IB 1997-203G short) Explain what is meant by a sufficient statistic. Consider the i...

A:

Q: Example 4.14 Consider the following two-parameter normal family 1 Str: u, a) = - 00 0 Find the consi...

A:

Q: A bag contains 3 red, 6 white and 7 black balls. What is the probability that two balls drawn are wh...

A:

Q: 3. The daily salary earned by employed at Mesra Company are as follows: Daily salary (cm) Frequency ...

A: Mean of a frequency distribution is the average value. Histogram is a diagrammatic representation of...

Q: ) Consider the model y, = B, + B,x, + B,x + €,. for Isisn, where x,, .. . , are given values, with x...

A:

Q: 2.4-8. A boiler has five relief valves. The probability that each opens properly is 0.97. (a) Find t...

A: Givenn=5p=0.97Let "x" be the no.valves open properlyx~Binomial(n=5,p=0.97)P(X=x)=(nx)×px×(1-p)n-x   ...

Q: Consider a random sample X1, X2, ..., X, from Bernoulli's distribu- tion B(1, p). Prove that X; is a...

A:

Q: (d) Compute the mean u. Round the answer to two decimal places. Hx

A:

Q: X ev An investigator has reported the data tabulated below. It is known that such data can be modele...

A: Solution:

Q: The first three moments of a distribution about the value 2 of.the variable are 1, 16 and – 40. Show...

A:

Q: In 2006, the average household debt service ratio for homeowners was 14.35. The household debt servi...

A:

Q: i) Let X be a random variable with the PDF f(x: 0) =e-(1-", 00, S(x; A, jµ) = { ^†" -e/", x0 and u> ...

A:

Q: Problem #3 ( Given a population of 2000 normally distributed scores with mean u = 74 and meanu=74 a ...

A: Given data,Mean μ=74sd    σ=6N=2000

Q: Administrators at Texas A&M University were interested in estimating the percentage of students who ...

A:

Q: 1. 40th percentile 2. 60th percentile 3. 95th percentile 1. Solution:

A:

Q: 1, 12, sam (n-1)s² sampling distribution of the quantity has a

A:

Q: Problem #1 An Electronics firm employs 15 people whose yearly salaries (in hundred thousand of pesos...

A: We create distribution table for the above data, Observation (Xi)  Frequency  Probability p(x) ...

Q: In a continuous-time surplus model, the claim severity is distributed as PN(0.7). Determine the Lund...

A: We are given the following information as follows : Claim severity distributed as PN(0.7) Initial s...

Q: The mean number of hours of sleep that a college student gets per night is 6 hours with a standard d...

A: Given data,Mean μ=6sd    σ=3n=20P(X<5)=?

Q: One problem facing the manager of maintenance departments is when to change the bulbs in streetlamps...

A: Given information: Use the given data to determine descriptive data in excel: Sum 199959 Averag...

Q: Mr. X wants to determine on the basis of sample study the mean time required to complete a certain j...

A: It is given that Margin of error E = 2 Population SD = √(64) = 8 The critical value of Z at 95% conf...

Q: A random sample of 34 cases is selected from this population. i. Determine the expected value and va...

A:

Q: The sum of the deviation for the values * .35, 45, 30, 35, 40, and 25 is Zero True O False O

A:

Q: You run a PPM correlation on sprint speed and vertical jump height in NFL running backs and find an ...

A:

Q: The time to repair a power generator is best described by its pdf 1sts 10 hours 333 m(t) = (a) Find ...

A:

Q: 9. You are given the following information about advertising expenditure and sales: Adv. Exp. (X)-. ...

A: Solution is given:

Q: Confidence intervals on the variance is very sensitive on the normality of the data whie the confide...

A: Confidence interval of variance assumes normality of samples, and is very sensitive to the sample di...

Q: Help her address the charge of gender discrimination by finding the probability of getting five or f...

A: NOTE: as per guidelines i have calculated first main question  here given  After being rejected for ...

Q: Use the empirical distribution function interpolation method to compute the 100 percentile for the f...

A: First we arrange the data in ascending order so it would be easy to get 100th percentile, Data in as...

Q: briefly interpret Local indicators of spatial association (LISA) cluster map. LISA Cluster Map (CRIM...

A: Given a LISA cluster map

Q: You work for the U.S. Food and Drug Administration. You have gotten word that a drug manufacturing i...

A: Formula : CI=point estimate ± ME

Q: Question 1 Find the maximum likelihood function of the estimator a? for the following distribution S...

A:

Q: The CEO of Flying Fire Corporation claims that an average flying fire light bulb lasts 300 days, A r...

A: Given : CEO's claim that average flying fire light bulb lasts 300 days Sample size (n) =15 Standard ...

Q: A símple random sample of size 100 has mean 15, the population variance being 25. Find an interval e...

A:

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

A:

Q: A distribution of scores has no mode and the same median and mean values. This indicates that the

A: From the given information above, A distribution of scores has no mode and the same median and mean ...

Q: Assume that a procedure yields a binomial distribution with a trial repeated n = 5 times. Use some f...

A:

Q: The proportion of each colored marble is shown in the table. Suppose you draw two marbles one after ...

A:

Q: Describe the graph you created above. 2. What measures of center and spread would be best to use for...

A: The given graph is histogram of weight gained for female while pregnant.  Where weight gained is rep...

Q: (a) What is the expected value of your profit? Rou

A: Here given, In the New York State Numbers lottery, you pay $3 and can bet that the sum of the number...

Q: If 2% of electric bulbs manufactured by a certain company are defective. Find the probability that i...

A: Solution is given:

Q: Between the hours 2 pm and 4 pm, the average number of phone calls per minute coming into the switch...

A: Given,A random variable X~Poisson(λ=2.35)P(X=x)=e-2.352.35xx!  ;   x=0,1,2,.....

Q: The mean number of hours of sleep that a college student gets per night is 6 hours with a standard d...

A: We have given that.   X~N( μ , ?^2 )   μ=6 , ? =3    , n=40   Z-score =( x - μ )/?

Q: If a string, 1 m long, is cut into 2 pieces at a random point along its length, what is the probabil...

A:

Q: In the two regression lines are 3y + 9x = 46 and 3x + 12y = 19, determine which one of %3D these is ...

A:

Q: A researcher wants to know how long it takes, on average, for a certain species of bacteria to divid...

A: Given data,8,6.6,9,7.4,6.1,8.9,10,8.1,8.4,8.3,8.3,8.4,4.9,7.8,7.4,6.3Population standard deviation i...

Q: You are interested in finding a 95% confidence interval for the average number of days of class that...

A:

Q: The average return of a risky portfolio is 10.5% per year with a stan- dard deviation of 18%. If ret...

A:

Q: 5 (i) Let x,, ..., x„ be a random sample from x„) is sufficient for 0? the PDF f(x: 0). What is mean...

A: