The developer of a phonetics game claims that use of the game will improve the reading scores by at least 10 points in 2nd grade children. The reading levels of eight randomly selected second grade children were tested before use of the game and then retested after exposure to the game for six months. Using a 5% significance level, is there statistically sufficient evidence to support the claim that the post test scores were higher than the pretest scores? Perform an appropriate hypothesis test showing necessary statistical evidence to support your final given conclusion