Create confidence intervals related to the interval and ratio-level data you collected.

1. What is the best estimate of the population mean

2. Develop a 95% confidence interval for the population mean. Develop a 90% confidence interval for the population mean. Develop a 98% confidence interval for the population mean

3. Interpret the confidence interval

Q. Which of the following sites do you use?
Social Site	Frequency	Cum. Freq.
Facebook	30	30
Twitter	17	47
LinkedIn	19	66
YouTube	11	77
Skype	8	85
Reddit	2	87
Google+	7	94

Q. How many contacts/friends do you have?
	Frequency	Cum. Freq.
Fewer than 10	0	0
10 to 50	0	0
51 to 100	13	13
More than 100	17	30

Answer rating: 100% (QA)

1 Sample mean is the best estimate of the population mean 2 D... View the full answer