Researchers are testing a new program for children who are learning to read. Each child is randomly assigned to either the treatment group that received the new intervention or a control group that received standard curriculum. Reading ability is measured using a validated score that is appropriately analyzed as a continuous variable. All assumptions of the statistical test are met.

But alas - Bethy spilled her favorite wine over the test statistic and was so preoccupied with her mess that she forgot to provide the P value to supplement her analysis. Please respond to the following questions to help make sense ofthis Stata output.

A. What statistical test was conducted? State the null and alternative hypotheses for this research question.

B. Is there a statistically significant difference between the groups? How can you tell?

C. Comment on the magnitude of the t-statistic (note: do not calculate the t-statistic).

D. What critical value was used to calculate the 95% confidence interval? How do you know?

E. Summarize this research in no more than two sentences. Include a proper interpretation of the 95% confidence interval and your conclusion regarding the null hypothesis.

Also, include a well-thought statement of the practical importance of this research. and

state the assumption you must make for your response to partBto be considered correct.

Group Obs Mean Std. Err. Std. Dev. [95$ Conf. Interval] Control 23 41 . 52174 3. 575758 17.14873 34 . 10607 48 . 93741 Treated 21 51 . 47619 2 . 402002 11 . 00736 46. 4657 56 . 48668 combined 44 46.27273 2.296786 15.23515 41 . 64082 50 . 90464 diff -9. 954451 4.391893 -18.81765 -1 . 091253 diff = mean (Control) - mean (Treated) t= Ho: diff = 0 degrees of freedom =