Suppose you have a normally distributed population such that o? = 7. Using the sampling distribution of s², we find that from a random sample of size n = 11, S² = 16.053. Does our population variance seem reasonable? Note: We will consider our population variance reasonable if our X value falls within the interval x0.975 (df), x²0.025(df)]- 1) Find the values of the interval [x'o.975(df), x²0.025(df)]- X'0.975(df) = (Round to 3 decimals.) X'0.025(df) = (Round to 3 decimals.) 2) Find the value of x that comes from the data you collected in the problem statement. (Round to 3 decimals.) 3) Is the population variance reasonable? O Yes O No

Q: Suppose that the random variable X represents th If E(X) 9 and V(X) 0.25, wh millimeters. Meani…

A: Let X be a random variable that represents the length of a punched part in the centimeters.Let Y be…

Q: A sample from a population witha mean of μ = 40, and a standard deviation of σ = 10, has a mean of…

A: Where,

Q: 3 For an SRS {Y: ³;=, from the normal distribution 1 fiy (цілето 2) vivore (y;u, - Show that the…

A: Here, The simple random samples of size n taken from the normal population. We have to show that the…

Q: A sample of n = 5 scores has a mean of M = 9. What is EX for this sample? %3D %3D

A: Given: Sample size = n = 5  Mean = M = 9 We have to find ∑X for the given data.

Q: Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic…

A: Given, Let X= 4.9, 4.2, 4.5, 4.1, 4.4, 4.3

Q: The pulse rates of 170 randomly selected adult males vary from a low of 44 bpm to a high of 124 bpm.…

A: Given, the pulse rates vary from a 44 bpm to a high of 124 bpm and the margin of error (E) is 4.

Q: For an SRS {Y: 3;=, from the normal distribution. Si= 1 fy (y;u, 0²) = ==// (Y-M) 2² 2 e √22√52 Show…

A:

Q: A population is normally distributed with µ = 90 and σ = 8. For this population, which score is the…

A: X follows a Normal distribution with mean = 90 and S.D = 8 Then z=(x-mean)/SD = (x-90)/8  follows…

Q: A sample of n=5  scores has a mean of M=12. If one new score with a value of  X=18 is added to the…

A:

Q: 3. If X is x² (23), find the following: a) P(14.85 < X < 32.01) b) constants a and b such that P(a <…

A: i.e. X follows chi-squared distribution with 23 degrees of freedom.

Q: random sample of n = 16 scores is obtained from a population with a mean of μ = 80, and a treatment…

A: Given data,  n = 16 μ = 80 M = 82 s 2 = 1600 s=40 what is the estimated d?

Q: Let Y1, Y2, ... Y, be a random sample size n from an exponential distribution with parameter B. (a)…

A: It is known that the pdf of Y is  fy=β×e-βy      y&gt;0 Sample size = y1, y2, .........yn

Q: Let X = the number of alpha particle emissions of carbon-14 that are counted by a Geiger counter…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: A sample with a mean of M = 40 and a variance of s2 = 20 has an estimated standard error of 1 point.…

A: The provided data is, M = 40 s2 = 20 Standard error, SE = 1

Q: Given population parameters for two populations, population 1 has a mean of 300 and a standard…

A: (a) Obtain the coefficient of variation for population 1. The coefficient of variation for…

Q: f n=7 scores has a mean of u=13. What is the value of EX

A: The formula of the mean is: Meanμ = ΣX N

Q: A variable of two populations has a mean of 40 and a standard deviation of 20 for one of the…

A: The data is given as- μ1=40,σ1=20,n1=25μ2=40,σ2=12,n2=16

Q: Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic…

A: a)

Q: A population of N= 23 scores has a mean of u = 5. After one score is removed, the mean is found to…

A: Given that - A population of N= 23 scores has a mean of u = 5. After one score is removed, the mean…

Q: A variable of two populations has a mean of 30 and a standard deviation of 24 for one of the…

A: Given: For first population: Mean, E(X1)=30Standard deviation σ1=24Sample size, n1=9 For second…

Q: For data that is not normally distributed we can't use z-scores. However, there is an equation that…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Suppose we are given a sample of 60 observations from a distribution whose mean is 0 and variance is…

A: The sample size n is 60, the mean is 0 and the variance is 3/5.

Q: Given population parameters for two populations, population 1 has a mean of 500 and a standard…

A: We have to find given data.

Q: Let X be a random variable that represents red blood cell count (RBC) in millions of cells per cubic…

A:

Q: The sum of the squared deviations of scores from their mean: is computed the same for samples and…

A: Introduction The deviations is a measure of difference b/w the observed value and some other value.

Q: 2. Let X - tp. Verify the mean and variance formulas. (Hint: Let X = p/2UV-1/2.)

A: Given The probability distributoin function The mean is calculated as shown below Here the…

Q: A sample of n = 16 scores is obtained from a population with μ = 70 and σ = 20. If the sample mean…

A: The sample mean also follow normal distribution with following parameters

Q: Answer the following for the probability distribution f(x) = (2x + 1) X= 0, 1, 2, 3 a. Find the mean…

A: Given function is f(x)=116(2x+1)   X=0,1,2,3