Thursday

April 24, 2014

April 24, 2014

Posted by **Sara** on Monday, January 16, 2012 at 7:33pm.

A professor at Kaplan University claims that the average age of all Kaplan students is 36 years old. Use a 95% confidence interval to test the professor's claim. Is the professor's claim reasonable or not? Explain

- Statistics-Confidence Interval -
**Sharon**, Tuesday, January 17, 2012 at 8:25pmFirst find the total age of all students from MM207(9062). Divide 9062 by the total students 244. The answer is 37.139 or 37. 95% confidence interval is 1.96. 37 + or - 1.96 =39 or 35. The professor's claim is quite reasonable.

- Statistics-Confidence Interval -
**PsyDAG**, Wednesday, January 18, 2012 at 2:16amApparently Sharon has more data than is indicated on your post. Also I don't know how she found the SD.

95% = mean ± 1.96 SD

**Related Questions**

Statistics - If someone gives you a sample mean and a standard deviation, you ...

statistics - Find the critical value zc necessary to form a confidence interval ...

statistics - Refer to Table 1 in the article “Snail Shells in a Practical ...

Statistics - The standard deviation for a population is σ = 15.3. A sample ...

Statistics - The 95% confidence interval is: (a) Larger than the 99% confidence ...

Statistics - Which of the following statements best describes the uncertainty ...

Statistics - We have calculated a 95% confidence interval for a proportion and ...

Statistics - A confidence interval was used to estimate the proportion of ...

statistics - What do confidence intervals represent? What is the most ...

Statistics - Multiple Choice Which of the following statements is true about the...