# statistics

posted by .

A food snack manu. samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and the sample standard deviation is .15, find the 95% confidence interval estimate for the true mean.

• statistics -

95% = mean ± 1.96 SEm

SEm = SD/√n

## Similar Questions

1. ### statistics

what are the mean and standard deviation of a sampling distribution consisting of samples of size 16?
2. ### Statistics

Which of the following statements correctly interprets a 95% confidence interval on a population mean?
3. ### statistics

A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 15. a) Compute the 95 % confidence interval for the population mean. b) Assume that the same sample mean was obtained from a sample …
4. ### statistics

a. A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean.
5. ### statistics

a random sample of 20 prices for summer sleeping bags was taken with a sample mean of \$83.75 and a sample standard deviation of \$29.97 a. Find a 95% confidence interval for the mean price of all summer sleeping bags. b. what is m i.e., …
6. ### stats

a random sample of 20 prices for summer sleeping bags was taken with a sample mean \$83.75 and a sample standard deviation of \$29.97 a) find a 95% confidence interval for the mean price of all summer sleeping bags b)what is m i.e. what …
7. ### Math Statistics

5. Students in an introductory statistics class were asked to report the age of their mothers when they were born. Summary statistics include Sample size: 36 students Sample mean: 29.643 years Sample standard deviation: 4.564 years …
8. ### Statistics

An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with …
9. ### statistics

A food manufacturer samples 7 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 14.2 oz and the sample standard deviation is 0.60 oz., find the 95% confidence interval of the true mean.
10. ### MATH

A food snack manufacturer samples 15 bags of pretzels off the assembly line and weighed their contents.If the sample mean is 10.0 and the sample standard deviation is 0.15, find the 95% confidence interval of the true mean.

More Similar Questions