Фио: Файзуллох Сатторий Абдижаббор угли Answers for 1

ФИО: Файзуллох Сатторий Абдижаббор угли
Answers for 1

1. 
   My answer is: we should do some experiments on economic circumstances: such as to estimate utility of people in the before-pay-day and after-pay-day groups, liquidity constraint
   
2. 
   I believe that real source of concern is reverse causality that why they are poor now. because, if a people have a lot of money inherited by family they live in a good condition. This causal effect affects not to be poor
   
3. 
   I don’t agree with this statement because one it cannot be casual effect. There are many factors like population and raw materials. We cannot conclude that countries with different levels of GDP per capita will also have different average levels of inter-temporal preferences.
   

Answer for 2

2.1. The evidence supplied is cases of cholera were centered around the pump

Ideal experiment is randomly assign water to a group of people.

2.2. I think evidence supplied in the sample is effect of class size and ideal experiment is how students can be randomly assigned to the different size of classes

2.3 I think evidence supplied is additional year of schooling

Answer for 3




















In the data analysis, the p-value is larger than 0.05, so, we cannot conclude that a significant difference exists.