Question

Is the sampling distribution of means a make up of all the means of samples? If...

Is the sampling distribution of means a make up of all the means of samples? If so, would the sampling distribution of means be approximately a normal distribution?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Sampling distribution of the mean probability distribution of means for ALL possible random samples of a given size from some population

  • By taking a sample from a population, we don’t know whether the sample mean reflects the population mean.
  • From the sampling distribution, we can calculate the possibility of a particular sample mean: chances are that our observed sample mean originates from the middle of the true sampling distribution.
  • When the sample size is at least 30 the sample mean is normally distributed.
  • When the population is normal the sample mean is normally distributed regardless of the sample size.
0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The sampling distribution of the means: a) is useful for making inferences about all measures of...
The sampling distribution of the means: a) is useful for making inferences about all measures of central tendency b) adopts the form of distribution from which the samples originate c) is normal whatever the form of the distribution from which the samples originate d) represents a theoretical distribution whose utility remains to be demonstrated in the study of descriptive statistics e) none of these answers
The spread or variation in the sampling distribution of means is called the __________ of the...
The spread or variation in the sampling distribution of means is called the __________ of the mean. Group of answer choices: Standard error Standard deviation Standardization Standard dispersion ---- The Central Limit Theorem tells us that : . Group of answer choices - If we keep taking samples from a population, and plot those means on a curve, they will form a bell-shaped, or normal, curve. - Standard error is a measure of how much the sample means do vary....
Question 2: Which of the following statements about the sampling distribution of means is not true?...
Question 2: Which of the following statements about the sampling distribution of means is not true? A. A sample distribution's mean will always equal the parent population distribution's mean B. The sampling distribution of means approximates the normal curve. C. The mean of a sampling distribution of means is equal to the population mean. D. The standard deviation of a sampling distribution of means is smaller than the standard deviation of the population.
Consider the set {1,2,3,4}. a) make a list of all samples of size 2 that can...
Consider the set {1,2,3,4}. a) make a list of all samples of size 2 that can be drawn from this set of integers( Sample with replacement; that is, the first number is drawn, observed, and then replaced [returned to the sample set] before the next drawing) b) construct the sampling distribution of sample means for samples of size 2 selected from this set. Provide the distribution both in the form of a table and histogram. c) Find μX and σX
the theoretical distribution of sampling means approximates the normal curve of N is greater than or...
the theoretical distribution of sampling means approximates the normal curve of N is greater than or equal to 50 regardless of the shape of the distribution on Y. this is referred to as the...
Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution,...
Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution, or neither. Claim: ? = 119. Sample data: ? = 15, ?̅ = 103, ? = 15.2. The sample data, for this simple random sample, appear to come from a normally distributed population with unknown ? and ?.
Please answer all the questions Directions: Find the mean and standard deviation of the sampling distribution...
Please answer all the questions Directions: Find the mean and standard deviation of the sampling distribution of sample means using the given information.   (Note: tilde sign (~) means approximately) 1. µ = 35 and σ = 9; n = 64 µx = 35 and σx = ~1.1 µx = 53 and σx = ~1.9 µx = 8 and σx = ~64 D. None of the above 2. µ = 28 and σ = 6; n = 81 µx= 10 and...
Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution...
Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution from a population that is skewed right with mean 50 and standard deviation 15. Diane obtains 1000 random samples of size n=3 from the​ population, finds the mean of the​ means, and determines the standard deviation of the means. Jack does the same​ simulation, but obtains 1000 random samples of size n=35 from the population. Complete parts​ (a) through​ (c) below. ​(a) Describe the...
In the sampling distribution of the sample means, the standard error of the mean will vary...
In the sampling distribution of the sample means, the standard error of the mean will vary according to the size of the sample. As the sample size, n, gets larger, the dispersion of the sampling distribution of the means gets larger.
The shape of the sampling distribution is always approximately normal? a) only if the shape of...
The shape of the sampling distribution is always approximately normal? a) only if the shape of the population is symmetrical b) only if the population is normally distributed c) only if the standard deviation of the samples are known d) regardless of the shape of the population
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT