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?
Homework Answers
Yes, a normal approximation can be used for a sampling distribution of sample means from a population with μ=78 and σ=14, when n=81, because the sample size n=81 is adequate (n≥30) for using the normal approximation and the sampling distribution of the sample means also follows an approximate normal distribution even though parent population is skewed or non-normal and sample size is small.
Add Answer to:
Can a normal approximation be used for a sampling distribution
of sample means from a population...
Why is a binomial distribution a reasonable approximation of a sampling distribution for a population proportion...
Why is a binomial distribution a reasonable approximation of a sampling distribution for a population proportion when the population is large relative to the sample size?
Find the standard deviation of the sampling distribution of sample means using the given information. Round...
Find the standard deviation of the sampling distribution of sample means using the given information. Round to one decimal place, if necessary. μ=74 and σ=14; n=25
A population of values has a normal distribution with μ = 134.3 and σ = 62.4 . You intend to draw a random sample of size n = 137 . What is the mean of the distribution of sample means? μ ¯ x = What is the standard deviation of the distrib
A population of values has a normal distribution with μ=134.3μ=134.3 and σ=62.4σ=62.4. You intend to draw a random sample of size n=137n=137.What is the mean of the distribution of sample means?μ¯x=μx¯= What is the standard deviation of the distribution of sample means?(Report answer accurate to 2 decimal places.)σ¯x=σx¯=
When we sketch a sampling distribution of means, we often assume it will be normal in...
When we sketch a sampling distribution of means, we often assume it will be normal in its shape, especially with a large enough sample size used for sampling means, even if the population distribution of scores we drew samples from is not normal in its shape. What allows us to make this assumption?
1) Random samples of size n were selected from populations with the means and variances given...
1) Random samples of size n were selected from populations with the means and variances given here. Find the mean and standard deviation of the sampling distribution of the sample mean in each case. (Round your answers to four decimal places.) (a) n = 16, μ = 14, σ2 = 9 μ=σ= (b) n = 100, μ = 9, σ2 = 4 μ=σ= (c) n = 10, μ = 118, σ2 = 1 μ=σ= 3) A random sample of size...
Determine whether a normal sampling distribution can be used for the following sample statisics If it...
Determine whether a normal sampling distribution can be used for the following sample statisics If it oan be used, test the claim about the difference between two population proportions p, and P2 at the level of significance a Assume that the samples are random and independent The samples are random and Independent A normal sampling distribultion (Round to two decimal places as needed.) can be used because n,p- 28.93,n-41.0 ngp 3306 nd 24-46.94 Sale กเติ and alternativo hypot eses, ส...
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
Find the mean of the sampling distribution of sample means using the given information. Round to...
Find the mean of the sampling distribution of sample means using the given information. Round to one decimal place, if necessary. μ=41 and σ=8; n=16
Decide whether the normal sampling distribution can be used. If it can be used, test the...
Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion p at the given level of significance alphaα using the given sample statistics. Claim: p≠0.26; α=0.05; Sample statistics: p=0.22, n=100
Which of the following is a true statement for any population with mean μ and standard deviation σ? I. The distribution of sample means for sample size n will have a mean of μ.
Which of the following is a true statement for any population with mean μ and standard deviation σ? I. The distribution of sample means for sample size n will have a mean of μ. II. The distribution of sample means for sample size n will have a standard deviation of. III. The distribution of sample means will approach a normal distribution as n approaches infinity.
Determine whether a normal sampling distribution can be used for the following sample statisics If it oan be used, test the claim about the difference between two population proportions p, and P2 at the level of significance a Assume that the samples are random and independent The samples are random and Independent A normal sampling distribultion (Round to two decimal places as needed.) can be used because n,p- 28.93,n-41.0 ngp 3306 nd 24-46.94 Sale กเติ and alternativo hypot eses, ส...
Most questions answered within 3 hours.
-
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 16 minutes ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 2 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 2 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 4 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 4 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 4 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 4 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 4 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 4 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 4 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 4 hours ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 4 hours ago