Question

Find the 90% confidence interval for the variance and standard deviation for the lifetimes of inexpensive...

Find the 90% confidence interval for the variance and standard deviation for the lifetimes of inexpensive wristwatches if a sample of 24 watches has a standard deviation of 4.8 months. Assume the variable is normally distributed.

Homework Answers

Know the answer?
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
Similar Questions
Find the 99% confidence interval for the variance and standard deviation of the active ingredient in...
Find the 99% confidence interval for the variance and standard deviation of the active ingredient in a 500 mg pill if the sample size is 25 and the variance is 4 mg. Assume the variable is normally distributed
Find the 90% confidence interval for the variance and standard deviation for the price in dollars...
Find the 90% confidence interval for the variance and standard deviation for the price in dollars of an adult single-day ski lift ticket. Assume the data is normally distributed. 59        54        53        52        51 39        49        46        49        48
5. Find the 99% confidence interval for the variance and standard deviation of the active ingredient...
5. Find the 99% confidence interval for the variance and standard deviation of the active ingredient in a 500 mg pill if the sample size is 25 and the variance is 4 mg. Assume the variable is normally distributed.
1. Rocket Powered Roller Skates, let’s you skate at unlimited speeds. Find the 90% confidence interval...
1. Rocket Powered Roller Skates, let’s you skate at unlimited speeds. Find the 90% confidence interval of the true variance and the true standard deviation for the lifetime of ACME’s Rocket Powered Roller Skates if a random sample of 24 Rocket Powered Roller Skates has a standard deviation of 4.8 months. Assume that the lifetime of ACME’s Rocket Powered Roller Skates is normally distributed. Find the critical values of χ2L and χ2R that corresponds to the confidence interval. χ 2L...
Find the 98% confidence intervals for the variance and standard deviation of the ages of seniors...
Find the 98% confidence intervals for the variance and standard deviation of the ages of seniors at Oak Park College if a random sample of 28 students has a standard deviation of 2.4 years. Assume the variable is normally distributed. Use the chi-square distribution table to find any chi-square values to three decimal places. Round the final answers to one decimal place.  < σ2 < < σ <
use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the...
use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the population mean. justify your decision. if neither distribution can be used explain why. interpret the results. In a random sample of 24 mortgage institutions, the mean interest rate was 3.62% and the standard deviation was 0.41% Assume the interest rates are normally distributed. which distribution should be used to construct the confidence interval? The 90% confidence interval is? Interpret the results
Find the confidence level associated to the confidence interval extending from 3.64 to 54.25 for the...
Find the confidence level associated to the confidence interval extending from 3.64 to 54.25 for the population variance of a Normally distributed random variable X if a sample of 8 observations has a standard deviation of 3.1
Find the confidence level associated to the confidence interval extending from 4.94 to 26.2 for the...
Find the confidence level associated to the confidence interval extending from 4.94 to 26.2 for the population variance of a Normally distributed random variable X if a sample of 13 observations has a standard deviation of 3.1.
We wish to create a 90% confidence interval for the Variance given that a sample of...
We wish to create a 90% confidence interval for the Variance given that a sample of 30 has a standard deviation of 2. Find the Lower value for the confidence interval.Round to tenths.
VERY URGENT !!!! Find the confidence level associated to the confidence interval extending from 4.94 to...
VERY URGENT !!!! Find the confidence level associated to the confidence interval extending from 4.94 to 26.2 for the population variance of a Normally distributed random variable X if a sample of 13 observations has a standard deviation of 3.1.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT