Question

Given a normally distributed population. (a) Compute a 99% CI for μ when n = 100...

Given a normally distributed population.

(a) Compute a 99% CI for μ when n = 100 and x = 55.7, σ = 2.1. (_, _) (Round your answers to two decimal places.)

(b) How large must n be if the width of the 99% interval for μ is to be 1.0? (Round your answer up to the nearest whole number.) n =__

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

Homework Answers

Answer #1

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 CI is desired for the true average stray-load loss μ (watts) for a certain type...
A CI is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with σ = 3.16. (Round your answers to two decimal places. You must enter the LOWER BOUND first then the UPPER BOUND second.) (a) Compute a 95% CI for μ when n = 25 and x = 59.40 (...
A CI is desired for the true average stray-load loss μ (watts) for a certain type...
A CI is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with σ = 3.3. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 56.0. . watts (b) Compute a 95% CI for μ when n = 100...
A CI is desired for the true average stray-load loss ? (watts) for a certain type...
A CI is desired for the true average stray-load loss ? (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with ? = 2.9. (Round your answers to two decimal places.) (a) Compute a 95% CI for ? when n = 25 and x = 57.2. , watts (b) Compute a 95% CI for ? when n = 100...
Assuming that the population is normally​ distributed, construct a 99 %99% confidence interval for the population​...
Assuming that the population is normally​ distributed, construct a 99 %99% confidence interval for the population​ mean, based on the following sample size of n equals 5.n=5.​1, 2,​ 3, 44​, and 2020 In the given​ data, replace the value 2020 with 55 and recalculate the confidence interval. Using these​ results, describe the effect of an outlier​ (that is, an extreme​ value) on the confidence​ interval, in general. Find a 99 %99% confidence interval for the population​ mean, using the formula...
Use the t-distribution to find a confidence interval for a mean μ given the relevant sample...
Use the t-distribution to find a confidence interval for a mean μ given the relevant sample results. Give the best point estimate for μ, the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed. A 90% confidence interval for μ using the sample results x¯=144.2, s=55.7, and n=50 Round your answer for the point estimate to one decimal place, and your answers for the margin of...
Let Y = ex where X is normally distributed with μ = 1.9 and σ =...
Let Y = ex where X is normally distributed with μ = 1.9 and σ = 0.9. Compute the following values. [You may find it useful to reference the z table.] c. Compute the 90th percentile of Y. (Round your intermediate calculations to at least 4 decimal places, “z” value to 3 decimal places, and final answer to the nearest whole number.) The 90th percentile of Y ?
Assuming that the population is normally​ distributed, construct a 99 % confidence interval for the population​...
Assuming that the population is normally​ distributed, construct a 99 % confidence interval for the population​ mean, based on the following sample size of n equals 5. ​1, 2,​ 3, 4​, and 26 In the given​ data, replace the value 26 with 5 and recalculate the confidence interval. Using these​ results, describe the effect of an outlier​ (that is, an extreme​ value) on the confidence​ interval, in general. Find a 99 % confidence interval for the population​ mean, using the...
Let a random sample be taken of size n = 100 from a population with a...
Let a random sample be taken of size n = 100 from a population with a known standard deviation of \sigma σ = 20. Suppose that the mean of the sample is X-Bar.png= 37. Find the 95% confidence interval for the mean, \mu μ , of the population from which the sample was drawn. (Answer in CI format and round the values to whole numbers.)
A population is normally distributed with mean μ = 100 and standard deviation σ = 20....
A population is normally distributed with mean μ = 100 and standard deviation σ = 20. Find the probability that a value randomly selected from this population will have a value between 90 and 130. (i.e., calculate P(90<X<130))
Suppose a population of scores x is normally distributed with μ = 30 and σ =...
Suppose a population of scores x is normally distributed with μ = 30 and σ = 12. Use the standard normal distribution to find the probability indicated. (Round your answer to four decimal places.) Pr(24 ≤ x ≤ 42)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT