# Math

How would I find the confidence level (in %) if I am given the standard deviation, size of the random sample, and confidence interval?

1. 👍 0
2. 👎 0
3. 👁 173

## Similar Questions

1. ### Statistics

Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100, with a sample size of (i) 400, (ii) 1600. What is the effect of the sample size? (b) Find the

2. ### Statistics

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size

3. ### Statistics (45)

In developing patient appointment schedules, a medical center wants to estimate the mean time that a staff member spends with each patient. How large a sample should be taken if the desired margin of error is two minutes at a 95%

4. ### Statistics

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 6 hours, what is the required sample size

1. ### statistics

You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a reasonable approximation for the binomial distribution in this case. While it is an uncommon confidence

2. ### MATH

A random sample of size 81 has sample mean 20 and sample standard deviation 3. (a) Is it appropriate to use a Student’s t distribution to compute a confidence interval for the population mean μ? Explain. (b) Find a 95%

3. ### statistics

we developed a 95% z confidence interval for the mean BMI of women aged 20 to 29 years, based on a national random sample of 654 such women. we assumed there that the population standard deviation was known to be 7.5. in fact the

4. ### Statistics

As standard deviation increases, samples size _____________ to achieve a specified level of confidence. A. Increases B. Decreases C. Remains the same

1. ### Math (Statistics)

PLEASE GET BACK TO ME ASAP!! 1) Use the given data to find the minimum sample size required to estimate the population proportion. Margin of error: 0.04; confidence level: 94%; q̂ unknown a. 486 *** b. 572 c. 553 d. 587 2) Use

2. ### statistics

use the given information to find the minimum sample size required to estimate an unknown population mean. Margin of error/; \$137, confidence level:99%, standard deviation = \$535

3. ### statistics

A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250. a) What sample size should be used. b) Repeat part (a) with a standard

4. ### Statistics

Use the given confidence level and sample data to find a confidence interval for the population standard deviation. Assume that a simple random sample has been selected from a population that has a normal distribution. Salaries of