Question

A population of values has a normal distribution with μ=159.6 and σ=75.4 You intend to draw...

A population of values has a normal distribution with μ=159.6 and σ=75.4 You intend to draw a random sample of size n=125

What is the mean of the distribution of sample means?
μ¯x=

What is the standard deviation of the distribution of sample means (i.e. the standard error)?
(Report answer accurate to 2 decimal places.)
σ¯x=

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

Homework Answers

Answer #1

Solution :

Given that ,

mean = = 159.6

standard deviation = = 75.4

n = 125

sample distribution of sample mean is ,

=

= 159.6

sampling distribution of standard deviation

=  / n = 75.4 / 125=6.74

=6.74

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
A population of values has a normal distribution with μ=220 and σ=3.1. You intend to draw...
A population of values has a normal distribution with μ=220 and σ=3.1. You intend to draw a random sample of size n=114. What is the mean of the distribution of sample means? μ¯x= What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x=
A population of values has a normal distribution with μ=169μ=169 and σ=84.7σ=84.7. You intend to draw...
A population of values has a normal distribution with μ=169μ=169 and σ=84.7σ=84.7. You intend to draw a random sample of size n=157n=157. 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¯=
A population of values has a normal distribution with μ=190.1μ=190.1 and σ=91.6σ=91.6. You intend to draw...
A population of values has a normal distribution with μ=190.1μ=190.1 and σ=91.6σ=91.6. You intend to draw a random sample of size n=151n=151. a) What is the mean of the distribution of sample means? μ¯x=μx¯= b) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x=σx¯=
1.) A population of values has a normal distribution with μ=33.7μ=33.7 and σ=19.7σ=19.7. You intend to...
1.) A population of values has a normal distribution with μ=33.7μ=33.7 and σ=19.7σ=19.7. You intend to draw a random sample of size n=113n=113. a.))) What is the mean of the distribution of sample means? b.))) What is the standard deviation of the distribution of sample means? 2.) A population has parameters μ=143.4μ=143.4 and σ=49.4σ=49.4. You intend to draw a random sample of size n=156n=156. a.))) What is the mean of the distribution of sample means? b.))) What is the standard...
A population of values has a distribution with μ=197.6 and σ=24.6. You intend to draw a...
A population of values has a distribution with μ=197.6 and σ=24.6. You intend to draw a random sample of size n=19. (a) What is the mean of the distribution of sample means? μ¯x= ____? (b) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x= ___ ? (c) In a random sample of n=19, what is the probability that its random sample mean is more than 197.5? Round to three decimal...
A population of values has a normal distribution with μ = 121.7 μ = 121.7 and...
A population of values has a normal distribution with μ = 121.7 μ = 121.7 and σ = 51.2 σ = 51.2 . You intend to draw a random sample of size n = 195 n = 195 . What is the mean of the distribution of sample means? μ ¯ x = μ x ¯ = What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ ¯ x = σ...
A population has parameters μ = 208.3 and σ = 92.5 . You intend to draw...
A population has parameters μ = 208.3 and σ = 92.5 . You intend to draw a random sample of size n = 116 . What is the mean of the distribution of sample means? μ ¯ x = What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ ¯ x =
A population of values has a distribution with μ=82.4μ=82.4 and σ=23.7σ=23.7. You intend to draw a...
A population of values has a distribution with μ=82.4μ=82.4 and σ=23.7σ=23.7. You intend to draw a random sample of size n=167n=167. According to the Central Limit Theorem: (a) What is the mean of the distribution of sample means? μ¯x= (b) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x= (c) In a random sample of n=167, what is the probability that its random sample mean is more than 83.9? Round...
A population of values has a distribution with μ=113.3μ=113.3 and σ=68.6σ=68.6. You intend to draw a...
A population of values has a distribution with μ=113.3μ=113.3 and σ=68.6σ=68.6. You intend to draw a random sample of size n=139n=139. According to the Central Limit Theorem: (a) What is the mean of the distribution of sample means? μ¯x=μx¯= (b) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x=σx¯= (c) In a random sample of n=139, what is the probability that its random sample mean is more than 119.7? Round...
A population of values has a distribution with μ=211.8μ=211.8 and σ=33.1σ=33.1. You intend to draw a...
A population of values has a distribution with μ=211.8μ=211.8 and σ=33.1σ=33.1. You intend to draw a random sample of size n=120n=120. According to the Central Limit Theorem: (a) What is the mean of the distribution of sample means? μ¯x=μx¯= (b) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) σ¯x=σx¯= (c) In a random sample of n=120, what is the probability that its random sample mean is more than 211? Round...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT