refraction index
		1.56
		1.49
		1.47
		1.41
		1.34
		1.29
		1.25
		1.22
		1.23
		1.12
		1.1
		1.08
1	ratio	ratio	1. What level of measurement is the data?
2	12	12	2. Find the sample size n for the data.
3	1.08	1.0800	3. Find the minimum.
4	1.56	1.5600	4. Find the maximum.
5	0.48	0.4800	5. Find the range.
6	1.32	1.3200	6. Find the midrange.
7	1.27	1.2700	7. Find the median.
8	no mode	no mode	8. Find the mode.
9	1.3	1.2967	9. Find the sample mean x.
10	0.16	0.1598	10. Find the sample standard deviation sx.
11	0.12	0.1232	11. Find the sample coefficient of variation CV.
12	0.05	0.0461	12. Calculate the standard error of the mean.
			13. Calculate the 95% confidence interval for the population mean index of refraction.			) = 0.95
13	p(	1.2	< μ <	1.4
	p(	1.1951	< μ <	1.3982
14	Yes	Yes	14. Is 1.33 a possible population µ?