# confidence intervals questions

This week you will begin working on Phase 2. Using the same data set and variables ( see attached) for your selected topic, add the following information to your analysis:

- Discuss the importance of constructing confidence intervals for the population mean.

- What are confidence intervals?
- What is a point estimate?
- What is the best point estimate for the population mean? Explain.
- Why do we need confidence intervals?

- Based on your selected topic, evaluate the following:

- Find the best point estimate of the population mean.
- Construct a
confidence interval for the population mean. Assume that your data is normally distributed and ÃÆ’ is unknown.*95%*- Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.

- Write a statement that correctly interprets the confidence interval in context of your selected topic.

- Based on your selected topic, evaluate the following:

- Find the best point estimate of the population mean.
- Construct a
confidence interval for the population mean. Assume that your data is normally distributed and ÃÆ’ is unknown.*99%***Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.**

- Write a statement that correctly interprets the confidence interval in context of your selected topic.

- Compare and contrast your findings for the 95% and 99% confidence interval.

- Did you notice any changes in your interval estimate? Explain.
- What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain.

due tomorrow 11 am cst

2 pages APA format & references

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this week you will begin working on Phase 3. Using the same data set and variables for your selected topic ( see attached for data set and background info) add the following information to your …

- Based on your selected topic ( see attached), evaluate the following:
- Find the best point estimate of the population mean.
- Construct a
confidence interval for the population mean. Assume …*95%*

- Based on your selected topic ( see attached), evaluate the following:

- Find the best point estimate of the population mean.
- Construct a
confidence interval for the population mean. Assume …*95%*

this week you will begin working on Phase 3. Using the same data set and variables for your selected topic ( see attached for data set , add the following information to your analysis:

- Discuss the …