A researcher plans to study the causal effect of a strong legal system on economy, using data from a random sample of U.S. counties. The researcher plans to regress national income per capita on whether the country has a strong legal system or not (an indicator variable taking the value 1 or 0, based on expert opinion). Do you think this regression suffers from omitted variable bias

Answer:

Based on expert opinion the regression does not suffer from omitted variable bias

Step-by-step explanation:

Based on expert opinion the regression does not suffer from omitted variable bias because its indicators taking values of 1 and 0 where 1 would represent taking action by the legal system  and 0 would represent not taking action by the legal system. as

The researcher plans to regress national income per capita based on the effect of the legal system

applying the formula for addressing omitted variable bias ( attached below )

Dobie works as a window washer, and finds lots of time to think while working. He notices when windows are cracked, and fells that the number of cracked windows has been increasing. He wants to determine if this increase is statistically significant by applying a control chart. He collected data for the past 10 days measuring the number of cracked windows he observed per shift.
What is the UCL?
a. 5.90
b. 59.00
c. 13.19
d. 2.42
The LCL?
a. 0
b. 20.14
c. 5.90
d. 2014
Is the number of observed cracked windows within control limits?
a. No
b. Yes
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
3 4 2 4 6 5 8 8 7 12
Dobie noted that the windows he washes may have multiple panes per window. So, rather than counting cracked windows, Dobie instead converts the prior data into cracked window panes. Based on the data below:
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
6 11 4 12 13 12 11 13 7 19
What is the UCL?
a. 13.19
b. 23.66
c. 20.66
d. 10.80
The LCL?
a. 0
b. 10.8
c. 0.94
d. 3.29
Is the number of observed cracked window panes within control limits?
a. Yes
b. No
Is Dobie’s theory that the number of cracked window panes is increasing valid?
a. No
b. Yes

53
Given that the measure of angle Xis 132º, and the measure of angle Yis 55°, find the
measure of Angle z

Ssomeone help me in this one now please​

Phil needs to run at least 30
miles this week for his
training, If he has already run
18 miles this week, then how
mary miles should he run on
each of the 3 remaining days
this week?

I NEED THE INEQUALITIES SOLUTION AND THE GRAPH OF EACH QUESTION

Please please please give me all to each question not just the answer please

IF YOU GIVE ME A LINK I WILL REPORT YOU!

Which rational number is the opposite of 1.7? Select all that apply.
-1 7/10
-1.7
1 7/10

Which expression below has the same value as
6
9?​

FIRST TO ANSWER GETS BRALYIST
good luck :-)

What is the volume of the rectangular prism?

look at pic 10 pts will mark brainilest

NO LINKS OR ELSE YOU'LL BE REPORTED! Please give me the correct answer.Only answer if you're very good at math.

​

.........................................

I need help with this if you’re right I will mark you as brainlest

What is the answer please I need help

Find the equation of the line which passes through (-2,-2) and (2, -4).
O A. y = -1/2 x
O B. y=-x-3
OC. y=-3x-5
OD. y = -2x – 6
O E. y = {x-3

PLEASE HELP
WHAT ARE THE coordinates for the center of the hyperbola??

helpppppppppppppppppp

Every unitary operator U : X → X is normal. b) A matrix is unitary if and only if it is invertible. c) If two matrices are unitarily equivalent, then they are also similar. d) The sum of self-adjoint operators is self-adjoint. e) The adjoint of a unitary operator is unitary. f) The adjoint of a normal operator is normal. g) If all eigenvalues of a linear operator are 1, then the operator must be unitary or orthogonal. h) If all eigenvalues of a normal operator are 1, then the operator is identity. i) A linear operator may preserve norm but not the inner product.

How can you check to see if two fractions are equivalent please explain

can u solve it please.​

1.1.4 practice scale drawing

How much money would Julie earn for working 16 hours? 15 hours is 180$ PLEASE HELP

can someone please show me how to solve this?

Well this is very hard and I need help passing do anybody know the answer to this question

What is the area of this?

PLS HELP WITH NUMBER 6

A LOT OF POINTS!!
Suppose you borrow $40,000 at 13% APR for a 12-year term to be paid monthly. Your monthly payment is $450.00.

How much of your first payment goes toward interest?

Make sure you show your work to earn full credit.

A store pay $120 for a bicycle. The store has a 60% markup policy. What is the selling price of the bicycle? (answer $192)

Use your answer from the above question to help answer this question!! The store is now going out of business and is selling all of the bicycles at a 30% discount. What is the sale price of the bicycle?

A company produces remote-controlled helicopters. The company’s profit, in thousands of dollars, as a function of the number of helicopters produced per week can be modeled by a quadratic function. When 1 helicopter is produced per week, the company’s profit is 4 thousand dollars. The maximum profit, 22 thousand dollars, occurs when 4 helicopters are produced per week.

The function that models the scenario, where h is the number of helicopters produced per week, is

f(h) = –2(h – 4)2 + 22.

When 6 helicopters are produced weekly, the company’s profit is (blank)
thousand dollars.

Which equation will create a system of equations with infinitely many solutions?
A) 3x - y=5
B) -3x +y=5
C) 12x + 4y = 20
D) 12x - 4y= 20

Nathan bought 12 books for a total of $60. At this rate, what is the cost of 4 books?

I NEED THIS SOON PLEASE I'M BEGGING!!!!!