If the distribution of the population is bimodal, then the sampling distribution for the sample means...
If the distribution of the population is bimodal, then the sampling distribution for the sample means for this population with sample size 50 will be unimodal.
- True
- False
Homework Answers
Answer:
True
- if sample size is >=30 sampling distribution going to be normal
i.e, unimodal
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If the distribution of the population is bimodal, then the
sampling distribution for the sample means...
Which of the following is true about the sampling distribution of means? Shape of the sampling...
Which of the following is true about the sampling distribution of means? Shape of the sampling distribution of means is always the same shape as the population distribution, no matter what the sample size is. Sampling distribution of the mean is always right skewed since means cannot be smaller than 0. Sampling distributions of means are always nearly normal. Sampling distributions of means get closer to normality as the sample size increases.
The sampling distribution of means is: A list of all members of the population you are...
The sampling distribution of means is: A list of all members of the population you are studying. Also called the standard error of the mean. A set of numbers representing all of the possible sample means on a variable you could draw from a given population and a given sample size. A list of all members of the sample that you draw. 1 points Question 2 The standard deviation of the sampling distribution of means is called the: Margin of...
A certain population is bimodal. We want to estimate its mean, so we will collect a...
A certain population is bimodal. We want to estimate its mean, so we will collect a sample. Which should be true if we use a large sample rather than a small one? 1) The distribution of our sample data will be more clearly bimodal 2) The sampling distribution of the sample means will be approximately normal 3) The variability of the sample means will be smaller A. 1 only B. 2 & 3 C. 3 only D. 1,2 & 3...
QUESTION 1 We can create a distribution of sample means by selecting all possible random samples...
QUESTION 1 We can create a distribution of sample means by selecting all possible random samples of the same size from the population. a. True b. False QUESTION 3 If you select a sample of size 100 from a population of raw scores and construct a distribution of sample means, what shape will the distribution of samples means have? a. left skewed b. right skewed c. approximately normal d. more information is needed about the shape of the population of...
5. Regardless of the shape of the parent population, the sampling distribution of the mean approaches...
5. Regardless of the shape of the parent population, the sampling distribution of the mean approaches a normal distribution as sample size increases. a. True b. False
One measure of the overall sampling error in the entire distribution of sample means is the...
One measure of the overall sampling error in the entire distribution of sample means is the a. standard error of the mean b. population mean c. population median d. sample's true amount of bias
Can a normal approximation be used for a sampling distribution of sample means from a population...
Can a normal approximation be used for a sampling distribution of sample means from a population with μ=78 and σ=14, when n=81? why or why not?
6. Sampling Distributions Select which of the following is true and write why the remaining are...
6. Sampling Distributions Select which of the following is true and write why the remaining are false. d. The shape of the sampling distribution of all possible sample means is always bell-shaped. The shape of the sampling distribution of all possible sample means gets closer to the shape of the population distribution as the sample size gets large. e. f. The shape of the sampling distribution of all possible sample means gets approximately normal as the sample size gets large....
A sampling distribution for i would be obtained by finding ... O a. the means of...
A sampling distribution for i would be obtained by finding ... O a. the means of lots of samples of the same size from the same population O b. the means of lots of samples of the same size from different populations O c. the means of lots of samples of varying sizes from the same population d. the mean of a single sample
A sampling distribution is constructed based on a sample size of 25. If the sampling distribution...
A sampling distribution is constructed based on a sample size of 25. If the sampling distribution has a mean of 500 and a standard error of 15, what is the standard deviation of the original comparison population? A. 60 B. 75 C. 30 D. 50
6. Sampling Distributions Select which of the following is true and write why the remaining are false. d. The shape of the sampling distribution of all possible sample means is always bell-shaped. The shape of the sampling distribution of all possible sample means gets closer to the shape of the population distribution as the sample size gets large. e. f. The shape of the sampling distribution of all possible sample means gets approximately normal as the sample size gets large....
A sampling distribution for i would be obtained by finding ... O a. the means of lots of samples of the same size from the same population O b. the means of lots of samples of the same size from different populations O c. the means of lots of samples of varying sizes from the same population d. the mean of a single sample
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