Question

A standardized exam consists of three parts: math, writing, and critical reading. Sample data showing the math and writing scores for a sample of 12 students who took the exam follow.

Student	Math	Writing
1	540	474
2	432	380
3	528	463
4	574	612
5	448	420
6	502	526
7	480	430
8	499	459
9	610	609
10	572	541
11	390	335
12	593	607

1. Calculate the test statistic. (Round your answer to three decimal places.)

2. Calculate the p-value. (Round your answer to four decimal places.)

p-value =

3. What is the point estimate of the difference between the mean scores for the two tests? (Use math score − writing score.)

4. What are the estimates of the population mean scores for the two tests?

Math

Writing

Answer 1