Question

Consider a random variable X ~ N(μ, σ), where both μ and σ are unknown. Suppose we have n 1.1.0. samples generated from X. How do we construct a 95% confidence interval? Consider the cases n-: 10 and 1000. Use simulation to validate this confidence interval.

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
Consider a random variable X ~ N(μ, σ), where both μ and σ are unknown. Suppose...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 3. Suppose that the random variable X is an observation from a normal distribution with unknown...

    3. Suppose that the random variable X is an observation from a normal distribution with unknown mean μ and variance σ (a) 95% confidence interval for μ. (b) 95% upper confidence limit for μ. (c) 95% lower confidence limit for μ. 1 . Find a

  • 6. Suppose that X1,X2 , Xn form a random sample from a normal distribution N(μ, σ 2), both unknow...

    6. Suppose that X1,X2 , Xn form a random sample from a normal distribution N(μ, σ 2), both unknown. consider the hypotheses Construct a likelihood ratio test and show that this LRT is equivalent to a t-test 6. Suppose that X1,X2 , Xn form a random sample from a normal distribution N(μ, σ 2), both unknown. consider the hypotheses Construct a likelihood ratio test and show that this LRT is equivalent to a t-test

  • 1. Suppose you are drawing a random sample of size n > 0 from N(μ, σ2)...

    1. Suppose you are drawing a random sample of size n > 0 from N(μ, σ2) where σ > 0 is known. Decide if the following statements are true or false and explain your reasoning. Assume our 95% confidence procedure is (X- 1.96X+1.96 Vn a. If (3.2, 5.1) is a 95% CI from a particular random sample, then there is a 95% chance that μ is in this interval. b. If (3.2.5.1) is a 95% CI from a particular random...

  • 25> Consider a variable known to be Normally distributed with unknown mean μ and known standard...

    25> Consider a variable known to be Normally distributed with unknown mean μ and known standard deviation σ-10. (a) what would be the margin of error of a 95% confidence interval for the population mean based on a random sample size of 25? The multiplier for a z confidence interval with a 95% confidence level is the critical value z. 1.960. (Enter your answer rounded to three decimal places.) margin of error 25 (b) What would be the margin of...

  • Suppose a random variable x is normally distributed with  μ = 17.5 and σ = 5.8 ....

    Suppose a random variable x is normally distributed with  μ = 17.5 and σ = 5.8 . According to the Central Limit Theorem, for samples of size 8: The mean of the sampling distribution for x¯ ( x bar ) is: 1

  • Question. Consider a random sample X11-X12. . . . , Xini with ni-10 from N2(μ, Σ) and a random sa...

    Question. Consider a random sample X11-X12. . . . , Xini with ni-10 from N2(μ, Σ) and a random sample X21 . X22, . . . , x2n2 with n2 10 from M2(μ2. Σ ), where μί-μί, μί21.- 1,2. The summary statistics of the two samples as follows: 10 -5 s, 10-5 and S2-5 4 1. Test the hypothesis Ho : μ,-,12 versus Hi : μί ,< μ2 at 5% significance level. Hint: Use m1 n2 where Spooled = (n-1)sit2-2...

  • Suppose x has a distribution with μ = 35 and σ = 18. (a) If random...

    Suppose x has a distribution with μ = 35 and σ = 18. (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? Yes, the x distribution is normal with mean μ x = 35 and σ x = 4.5. No, the sample size is too small. Yes, the x distribution is normal with mean μ x = 35 and σ x = 18. Yes, the x distribution...

  • Suppose x has a distribution with μ = 32 and σ = 17. (a) If random...

    Suppose x has a distribution with μ = 32 and σ = 17. (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? No, the sample size is too small. Yes, the x distribution is normal with mean μ x = 32 and σ x = 17. Yes, the x distribution is normal with mean μ x = 32 and σ x = 1.1. Yes, the x distribution...

  • R1. Suppose X is a continuous RV with E(X-μ and Var(X-σ2 where both μ and σ...

    R1. Suppose X is a continuous RV with E(X-μ and Var(X-σ2 where both μ and σ are unknown. Note that X may not be a normal distribution. Show that X is an asymptotically unbiased estimator for μ2. (This problem does not require the computer.) R2. Let X ~ N(μ 10.82). Following up on R1, we will be approximating μ2, which we can see should be 100, For now, let the sample size be n 3. Pick 3 random numbers from...

  • A random sample of n measurements was selected from a population with unknown mean μ and...

    A random sample of n measurements was selected from a population with unknown mean μ and standard deviation σ = 35 for each of the situations in parts a through d. Calculate a 99​% confidence interval for μ for each of these situations. a. n = 75, x = 20 Interval: ( _____, _____ ) b. n = 150, x = 104 Interval: ( _____, _____ ) c. n = 90, x = 16 Interval: ( _____, _____ ) d....

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT