Please help with all four questions

Question 1

Calculate the equation of the best line through the following data set:

X	y
0.00	0.13
2.00	3.30
4.00	6.60
6.00	9.90
8.00	13.20
10.00	16.51

Do not force the equation through 0,0. Report your answer to the correct number of significant digits.

Calculate the equation of the best line through the following data set:

X	y
0.00	0.13
2.00	3.30
4.00	6.60
6.00	9.90
8.00	13.20
10.00	16.51

Do not force the equation through 0,0. Report your answer to the correct number of significant digits.

a)Intercept=1.6413

Slope = 0.06862

b)Slope = 0.07

Intercept=1.64

c)Slope=1.64

Intercept = 0.0662

Question 2

Calculate the Spooled value for the following data measured from two different experimental methods:

Data Set 1		Data Set 2
%		%
9.14		9.31
9.08		9.81
9.04		9.78
9.10		9.18
9.19		9.81

Assume there are no outlying data points.

Calculate the Spooled value for the following data measured from two different experimental methods:

Data Set 1		Data Set 2
%		%
9.14		9.31
9.08		9.81
9.04		9.78
9.10		9.18
9.19		9.81

Assume there are no outlying data points.

a) S_pooled =0.22

b) S_pooled =0.221

c) S_pooled =0.003

d) S_pooled =0.049

e) S_pooled =0.06

f) S_pooled =0.0033

g) S_pooled =0.0574

h) S_pooled =0.0490

i) S_pooled =0.05

j) S_pooled =0.00

Question 3

For the following data set, calculate the %RSD to the correct number of sig. digits. Assume no data are rejected.

27.281

27.281

27.484

27.790

27.709

27.565

27.484

a) 0.194

b) 27.513

c) 0.71

d) None of the above

Question 4

Given the following set of data calculate the standard deviation to the correct number significant digits:

12.12

10.12

10.11

10.09

10.09

10.08

a) 0.02

b) 0.83

c) 0.0164

d) 0.825