An article in the ieee transactions on instrumentation and measurement (“direct, fast, and accurate measurement of vt and k of mos transistor using vt-sift circuit,” 1991, vol. 40, pp. 951–955) described the use of a simple linear regression model to express drain current y (in milliamperes) as a function of ground-to-source voltage x (in volts). the data are as follows: y 0.734 0.886 1.04 1.19 1.35 1.50 1.66 1.81 1.97 2.12 x 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 round your answers to 3 decimal places. (a) fit a simple linear regression model to these data. (b) test for significance of regression using . (c) find a 90.0% confidence interval estimate on the slope. (d) test the hypothesis versus using .

the answer to the question is a

step-by-step explanation:

it has the same slope and the same y-intercept.

y + 11 = -7/9(x - 18)

y + 11 =-7/9x + 14

b

y = -7/9x + 3

y-intercept (0, 3)

24

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.