4. Given n > 30 and o is known. What is the appropriate distribution? C.p D. r B. t

Q: Suppose x has a distribution with μ = 41 and σ = 9. Find P(37 ≤ x ≤ 42)

A:

Q: Suppose a distribution has =10, Q, = 20, and e = 30. Then, the value of coefficient %3I of skewness…

A:

Q: Suppose x has a distribution with ? = 17 and ? = 16. (a) If a random sample of size n = 43 is…

A: X is a random  variable  mean=17 standard deviation=16 We know that Z=x- mean/standard deviation z…

Q: Suppose x has a distribution with μ = 62 and σ = 4. Find P(58 ≤ x ≤ 63). (Round your answer to four…

A: Given that, x has a distribution with μ = 62 and σ = 4.

Q: Suppose x has a distribution with ? = 15 and ? = 9. (a) If a random sample of size n = 35 is drawn,…

A: Given Information:  Mean (u) = 15  Standard deviation (s) = 9

Q: Calculate and report the standard error for the sampling distribution of (the difference between two…

A:

Q: A uniform distribution from 3.6 to 8.6 has a mean E[X] of, O 6.10 O 3.05 O 12.20 O 2.50

A: Ans:- Given, A uniform distribution from 3.6 to 8.6         Find the mean E(X) = ?

Q: Assume a symmetric distribution with mean 78, and SD, s = 12 Identify if each of the following are…

A: Given that  Assume a symmetric distribution with mean 78, and SD, s = 12

Q: Suppose x has a distribution with μ = 45 and σ = 14. Find P(41 ≤ x ≤ 46).

A: The probability between 41 and 46 is,

Q: The appropriate interval width for a random sample of 100 observations that fall between 50 and 250…

A: Given, A random sample of 100 observations that fall between 50 and 250 is:  The formula for class…

Q: Suppose x has a distribution with ? = 78 and ? = 8.   Find P(74 ≤ x ≤ 79). (Round your answer to…

A: We have given that.   X~N( μ , ?^2 )   μ =78 , ? =8   Z-score =( x - μ )/?

Q: Aynsleigh runs a business from home and ships items to her customers across the country. She…

A: Given,sample size(n)=50sample proportion(p^)=0.85

Q: ution is skwed to the right, it is

A: The skewed distributions are the distributions in which one of the tails of the distribution is…

Q: Suppose x has a distribution with ? = 15 and ? = 14  (a) If a random sample of size n = 39 is…

A:

Q: Suppose a simple random sample of size n= 81 is obtained from a population with p=87 and o = 18. (a)…

A: a) Central Limit Theorem for mean: If a random sample of size n is taken from a population having…

Q: There is a fixed number of trials in a geometric distribution. O true O False

A: The number of trials in a geometric distribution is not fixed. The experiment is performed until we…

Q: Let N have a Pois (4) distribution. What is P(N = 4)?

A: Given that N is a random variable which follows Poisson Distribution. Note that the Poisson is a…

Q: Suppose a simple random sample of size n= 49 is obtained from a population that is skewed right with…

A:

Q: Suppose x has a distribution with u = 30 and o = 22. A USE SALT (a) If a random sample of size n =…

A: Given: Mean =30 Standard deviation= 22

Q: Suppose x has a distribution with μ = 50 and σ = 20. FIND P(46 ≤ x(BAR) ≤ 51) . sample size n=16

A:

Q: Suppose a simple random sample of size n = 36 is obtained from a population with µ-87 and o= 12. (a)…

A: Givensample size(n)=36Mean(μ)=87standard deviation(σ)=12

Q: If the sample size is 8 then the degree of freedom when using the T distribution is equa 7.

A:

Q: Suppose x has a distribution with ? = 23 and ? = 20. (a) If a random sample of size n = 32 is…

A: From the given information we find the solution.

Q: Suppose that, as part of a game at a charity carnival, players are invited to spin a wheel for a…

A: Given Information: Sample size (n) = 40 p = 0.55 For large samples, the sample proportion is…

Q: If the sample size is 8 then the degree of freedom when using the T distribution is equa 7 8. 6.

A: we have to find degree of freedom

Q: a. What is the distribution of ? N( 122 V, 19.5959 b. For the group of 6, find the probability that…

A: Given:     Let X represent the number of friends, then X~N(122, 482) i.e.,   μ=122  & σ=48 Part…

Q: Suppose x has a distribution with μ = 86 and σ = 8. Find P(82 ≤ x ≤ 87)

A: Mean = 86 Standard deviation = 8

Q: Given a normal distribution with μ=101 and σ=25​, and given you select a sample of n=25​, What is…

A:

Q: 3. The farther that sample means are into the tail of the sampling distribution, the lower/higher…

A:

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: Suppose x has a distribution with ? = 84 and ? = 8 Find P(80 ≤ x ≤ 85). (Round your answer to four…

A: Given: Let  μ=84, where μ is the population meanσ=8, where σ is the population standard deviation

Q: The values associated with a two-sided 90% of the Student’s t distribution and 21 degrees of freedom…

A:

Q: Dr. Liu is about to assign grades of A,B,C or D, where D is a failing grade, to his ADM class of 100…

A: When we have to distribute r things from a set of n things when the duplication is allowed, then by…

Q: to use the approprate appendix table or technology to answer this question. pose we are interested…

A: Solution: Given information: n=60 Sample size μ= 51800  Population mean σ=4000 Population standard…

Q: 11. Consider the prices has a normal distribution Price mean%3D 75 Price S.D = 8 What is the…

A:

Q: When n=64 whales are randomy selected, what would be the standard error of the sampling…

A: Given,S2=16 MTx¯=18 MTn=64

Q: 1. As a general rule, the normal distribution is used to approximate the sampling distribution of…

A: Given : Statement : The normal distribution is used to approximate the sampling distribution of the…

Q: Suppose x has a distribution with ? = 19 and ? = 14. (a) If a random sample of size n = 46 is…

A: The mean and standard deviation are 19 and 14.

Q: Suppose that, as part of a game at a charity carnival, players are invited to spin a wheel for a…

A: Solution: Given information: n = 40 Sample size  p= 0.50 Population proportion

Q: The psychologists were expecting to get an equal number of children in each category and wanted to…

A: Given information: A team of psychologists were interested in the distribution of the children on…

Q: Suppose x has a distribution with ? = 14 and ? = 9. (a) If a random sample of size n = 38 is drawn,…

A: The random variable X follows normal distribution. The population mean is 14. The population…

Q: What is the value of the sample variance (s2), given that the S.E. Mear/S. E.= 8.87403, and n 28?…

A:

Q: Given a below distribution table: Outcome A В C D Observed 13 8 12 7 Expected 10 10 10 10 Test H, :…

A: Solution-: Here, we want to test H1: at least one proportion is different at α=0.025

Q: Suppose x has a distribution with ? = 76 and ? = 8. Find P(72 ≤ x ≤ 77). (Round your answer to four…

A: In question, Given that, X has distribution with mean 76 and standard deviation of 8. Then we'll…

Q: Suppose x has a distribution with ? = 29 and ? = 27. (a) If a random sample of size n = 43 is…

A: The mean is 29 and the standard deviation is 27.

Q: Find the are below 13 for a N(15,5) distribution

A:

Q: The following distribution has O a positive skew. 2 a negative skew. 3 no skew.

A: We have to which type of the skewed the above given distribution graph?

Q: Suppose a simple random sample of size n= 36 is obtained from a population with u = 88 and o = 6.…

A: (a) It is clear that the sample size large (greater than 30) indicating that the sampling…

Q: Given a normal distribution with μ=50 and σ=4​, and given you select a sample of n=100​, What is…

A: