Educational testing companies provide tutoring in an effort to help students perform better on the SAT. The company claim their courses will improve scores by an average of 120 points. A researcher is uncertain of the claim and believes that 120 points many be an over estimation. In an evaluation of one of the services, the researcher collects scores from 3 students who took the class and 48 who did not.A. Use a= .05 and the following data. What is your conclusion?DataSample mean- course= 1058 no course= 983sample Standard devation- course= 90 no course= 105What will my sample size for n1 and n2 be. What will the sample mean for both be? What will the variance for both 1 and 2 be?What is the point estimate? Margin of error? and C.I?