Say a scholarship is randomly assigned to a subset of students (treated) and not to others (control). The two groups are ex-ante identical and the sample size is 10,000. Assume this sample size is large enough such that a normal approximation is appropriate. The average score of the treated group is 10 and the average score of the control group is 9.2. The variance of difference between the treated and control is 0.25 and the 95% critical value for normal approximation is 1.96.
1. Compute the 95% confidence interval of the effect of the scholarship on student performance.

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

students group

step-by-step explanation:

a person who   joins a party or a seminar can explain his feelings about that particular occasion better more than anyone else.

as bella managed a show for the students in the school and invited students to watch that show

hence

students group will be the best group to survey to find this information

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4