Problem 2 (20)Research suggests a relationship between the TV viewing habits of 5-year old children and their future performance in high school. For example, Anderson, Huston, Wright and Collins (1998) report that high school students who regularly watched Sesame Street as children had better grades in high school than their peers who did not watch sesame street. Suppose a researcher intends to examine this phenomenon using a sample of 20 high school students.

The researchers first survey the student's parents to obtain information on the family's TV viewing habits during the time when the student were 5 years old. Based on the survey results based upon the survey's results the researcher selects a sample of n=10 students with a history of watching sesame street and a sample of n=10 students who did not watch the program. The average high school grade for each student is recorded below.

Watched Sesame Street(WSS)did not watch Sesame Street (NWSS)

86,99,87,97, 91, 94, 97,89,98,9290,79,89,83,82,86,83,81,85,92

1.State the null hypothesis.:

2.2. State the alternative hypothesis.:

3.What is the critical t two tailed =.05

4.Calculate the obtained T fill in the blanks below

S X _wss =S X _nwss =

S X²_wss =S X²_nwss =

SSwss =SSnwss =

T =

5.What is the decision?

6.What type of error may you be making?

7.Calculate cohen's D

8.Calculate Omega squared