Question

The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5....

The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5.

What is the point estimate of the population mean?

What is the point estimate of the population standard deviation? (Round to two decimal places)

With 95% confidence, what is the margin of error for the estimation of the population mean? (Round to two decimal places)

What is the 95% confidence interval for the population mean? (Round to two decimal places) ________and__________

Homework Answers

Answer #1


The statistic software output for this problem is :

The point estimate of the population mean is 10

The point estimate of the population standard deviation is s = 3.46

With 95% confidence, what is the margin of error for the estimation of the population mean is

= (12.90 - 7.10) / 2

= 2.90

What is the 95% confidence interval for the population mean is ,

7.10 and 12.90

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
The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4,...
The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4, 3. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean?...
The following sample data are from a normal population: 13, 11, 15, 18, 16, 14, 9,...
The following sample data are from a normal population: 13, 11, 15, 18, 16, 14, 9, 8. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean?...
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11,...
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11, 6, 5. a. What is the estimator of the average population b. What is the estimator of the population standard deviation c. At the 95% confidence level, what is the error margin of the population mean estimator d. Determine 95% confidence intervals for the population mean
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11,...
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11, 6, 5. a. What is the estimator of the average population b. What is the estimator of the population standard deviation c. At the 95% confidence level, what is the error margin of the population mean estimator d. Determine 95% confidence intervals for the population mean
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11,...
The following sample data is taken from the normal population: 10, 8, 12, 15, 13, 11, 6, 5. a. What is the estimator of the average population b. What is the estimator of the population standard deviation c. At the 95% confidence level, what is the error margin of the population mean estimator d. Determine 95% confidence intervals for the population mean
Let the following sample of 8 observations be drawn from a normal population with unknown mean...
Let the following sample of 8 observations be drawn from a normal population with unknown mean and standard deviation: 28, 23, 18, 15, 16, 5, 21, 13. [You may find it useful to reference the t table.] a. Calculate the sample mean and the sample standard deviation. (Round intermediate calculations to at least 4 decimal places. Round "Sample mean" to 3 decimal places and "Sample standard deviation" to 2 decimal places.) b. Construct the 90% confidence interval for the population...
Let the following sample of 8 observations be drawn from a normal population with unknown mean...
Let the following sample of 8 observations be drawn from a normal population with unknown mean and standard deviation: 16, 26, 20, 14, 23, 10, 12, 29. [You may find it useful to reference the t table.] a. Calculate the sample mean and the sample standard deviation. (Round intermediate calculations to at least 4 decimal places. Round "Sample mean" to 3 decimal places and "Sample standard deviation" to 2 decimal places.) b. Construct the 95% confidence interval for the population...
Sample data from a normal population are located in the Microsoft Excel Online file below. Use...
Sample data from a normal population are located in the Microsoft Excel Online file below. Use the data to answer the following questions for the σ unknown case. 8 12 14 18 19 16 17 3 The point estimate of the population mean is (to 2 decimals) The standard deviation is (to 2 decimals) The margin of error is (to 1 decimal) The 95% confidence interval is (to 1 decimal)
Data Set A: 11, 12, 13 Data Set B: 9, 10, 11, 12, 13, 14, 15...
Data Set A: 11, 12, 13 Data Set B: 9, 10, 11, 12, 13, 14, 15 Data Set C: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 Find the mean, sample standard deviation–treating the data as a sample, and the population standard deviation–treating the data as a population.
Suppose a random sample of size 11 was taken from a normally distributed population, and the...
Suppose a random sample of size 11 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 6.5. We'll assume the sample mean is 10 for convenience. a) Calculate the margin of error for a 90% confidence interval for the population mean. Round your response to at least 3 decimal places. Number b) Calculate the margin of error for a 95% confidence interval for the population mean. Round your response to at...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT